diff --git a/api/src/Kurs.Platform.Application.Contracts/FileManagement/FileManagementDtos.cs b/api/src/Kurs.Platform.Application.Contracts/FileManagement/FileManagementDtos.cs
index c5b5eb2e..2bbdc879 100644
--- a/api/src/Kurs.Platform.Application.Contracts/FileManagement/FileManagementDtos.cs
+++ b/api/src/Kurs.Platform.Application.Contracts/FileManagement/FileManagementDtos.cs
@@ -2,6 +2,7 @@
 
 using System.ComponentModel.DataAnnotations;
 using System.IO;
+using System.Collections.Generic;
 
 namespace Kurs.Platform.FileManagement;
 
@@ -45,4 +46,10 @@ public class SearchFilesDto
     public string Query { get; set; } = string.Empty;
     
     public string? ParentId { get; set; }
+}
+
+public class BulkDeleteDto
+{
+    [Required]
+    public List<string> ItemIds { get; set; } = new();
 }
\ No newline at end of file
diff --git a/api/src/Kurs.Platform.Application/FileManagement/FileManagementAppService.cs b/api/src/Kurs.Platform.Application/FileManagement/FileManagementAppService.cs
index 632c6b94..a3114473 100644
--- a/api/src/Kurs.Platform.Application/FileManagement/FileManagementAppService.cs
+++ b/api/src/Kurs.Platform.Application/FileManagement/FileManagementAppService.cs
@@ -8,6 +8,7 @@ using System.Text;
 using System.Text.Json;
 using System.Threading.Tasks;
 using Kurs.Platform.BlobStoring;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Logging;
 using Volo.Abp;
@@ -25,6 +26,14 @@ public class FileManagementAppService : ApplicationService, IFileManagementAppSe
     private const string FileMetadataSuffix = ".metadata.json";
     private const string FolderMarkerSuffix = ".folder";
     private const string IndexFileName = "index.json";
+    
+    // Protected system folders that cannot be deleted, renamed, or moved
+    private static readonly HashSet<string> ProtectedFolders = new(StringComparer.OrdinalIgnoreCase)
+    {
+        BlobContainerNames.Avatar,
+        BlobContainerNames.Import,
+        BlobContainerNames.Activity
+    };
 
     public FileManagementAppService(
         ICurrentTenant currentTenant,
@@ -60,6 +69,36 @@ public class FileManagementAppService : ApplicationService, IFileManagementAppSe
         return id.Replace("|", "/");
     }
 
+    private bool IsProtectedFolder(string path)
+    {
+        // Get the root folder name from path
+        var pathParts = path.Split('/', StringSplitOptions.RemoveEmptyEntries);
+        if (pathParts.Length == 0) return false;
+        
+        var rootFolder = pathParts[0];
+        var isProtected = ProtectedFolders.Contains(rootFolder);
+        
+        Logger.LogInformation($"IsProtectedFolder - Path: '{path}', RootFolder: '{rootFolder}', IsProtected: {isProtected}");
+        Logger.LogInformation($"Protected folders: {string.Join(", ", ProtectedFolders)}");
+        
+        return isProtected;
+    }
+
+    private void ValidateNotProtectedFolder(string id, string operation)
+    {
+        var decodedPath = DecodeIdAsPath(id);
+        Logger.LogInformation($"ValidateNotProtectedFolder - ID: {id}, DecodedPath: {decodedPath}, Operation: {operation}");
+        
+        if (IsProtectedFolder(decodedPath))
+        {
+            var folderName = decodedPath.Split('/')[0];
+            Logger.LogWarning($"Blocked {operation} operation on protected folder: {folderName}");
+            throw new UserFriendlyException($"Cannot {operation} system folder '{folderName}'. This folder is protected.");
+        }
+        
+        Logger.LogInformation($"Folder {decodedPath} is not protected, allowing {operation}");
+    }
+
     private async Task<List<FileMetadata>> GetFolderIndexAsync(string? parentId = null)
     {
         return await GetRealCdnContentsAsync(parentId);
@@ -190,19 +229,27 @@ public class FileManagementAppService : ApplicationService, IFileManagementAppSe
     {
         var items = await GetFolderIndexAsync(parentId);
 
-        var result = items.Select(metadata => new FileItemDto
-        {
-            Id = metadata.Id,
-            Name = metadata.Name,
-            Type = metadata.Type,
-            Size = metadata.Size,
-            Extension = metadata.Extension,
-            MimeType = metadata.MimeType,
-            CreatedAt = metadata.CreatedAt,
-            ModifiedAt = metadata.ModifiedAt,
-            Path = metadata.Path,
-            ParentId = parentId ?? string.Empty,
-            IsReadOnly = metadata.IsReadOnly
+        var result = items.Select(metadata => {
+            var isRootLevel = string.IsNullOrEmpty(parentId);
+            var isProtected = IsProtectedFolder(metadata.Path);
+            var finalIsReadOnly = metadata.IsReadOnly || (isRootLevel && isProtected);
+            
+            Logger.LogInformation($"Item: {metadata.Name}, Path: {metadata.Path}, IsRootLevel: {isRootLevel}, IsProtected: {isProtected}, FinalIsReadOnly: {finalIsReadOnly}");
+            
+            return new FileItemDto
+            {
+                Id = metadata.Id,
+                Name = metadata.Name,
+                Type = metadata.Type,
+                Size = metadata.Size,
+                Extension = metadata.Extension,
+                MimeType = metadata.MimeType,
+                CreatedAt = metadata.CreatedAt,
+                ModifiedAt = metadata.ModifiedAt,
+                Path = metadata.Path,
+                ParentId = parentId ?? string.Empty,
+                IsReadOnly = finalIsReadOnly
+            };
         }).OrderBy(x => x.Type == "folder" ? 0 : 1).ThenBy(x => x.Name).ToList();
 
         return new GetFilesDto { Items = result };
@@ -373,6 +420,9 @@ public class FileManagementAppService : ApplicationService, IFileManagementAppSe
 
     public async Task<FileItemDto> RenameItemAsync(string id, RenameItemDto input)
     {
+        // Check if this is a protected system folder
+        ValidateNotProtectedFolder(id, "rename");
+        
         ValidateFileName(input.Name);
 
         var metadata = await FindItemMetadataAsync(id);
@@ -499,6 +549,9 @@ public class FileManagementAppService : ApplicationService, IFileManagementAppSe
 
     public async Task DeleteItemAsync(string id)
     {
+        // Check if this is a protected system folder
+        ValidateNotProtectedFolder(id, "delete");
+        
         var cdnBasePath = _configuration["App:CdnPath"];
         if (string.IsNullOrEmpty(cdnBasePath))
         {
@@ -525,6 +578,59 @@ public class FileManagementAppService : ApplicationService, IFileManagementAppSe
         }
     }
 
+    public async Task BulkDeleteItemsAsync(BulkDeleteDto input)
+    {
+        if (input.ItemIds == null || !input.ItemIds.Any())
+        {
+            throw new UserFriendlyException("No items selected for deletion");
+        }
+
+        var cdnBasePath = _configuration["App:CdnPath"];
+        if (string.IsNullOrEmpty(cdnBasePath))
+        {
+            throw new UserFriendlyException("CDN path is not configured");
+        }
+
+        var tenantId = _currentTenant.Id?.ToString() ?? "host";
+        var errors = new List<string>();
+
+        foreach (var itemId in input.ItemIds)
+        {
+            try
+            {
+                // Check if this is a protected system folder
+                ValidateNotProtectedFolder(itemId, "delete");
+                
+                var actualPath = DecodeIdAsPath(itemId);
+                var fullPath = Path.Combine(cdnBasePath, tenantId, actualPath);
+
+                if (Directory.Exists(fullPath))
+                {
+                    // Klasör sil (içindeki tüm dosyalar ile birlikte)
+                    Directory.Delete(fullPath, recursive: true);
+                }
+                else if (File.Exists(fullPath))
+                {
+                    // Dosya sil
+                    File.Delete(fullPath);
+                }
+                else
+                {
+                    errors.Add($"Item not found: {itemId}");
+                }
+            }
+            catch (Exception ex)
+            {
+                errors.Add($"Failed to delete {itemId}: {ex.Message}");
+            }
+        }
+
+        if (errors.Any())
+        {
+            throw new UserFriendlyException($"Some items could not be deleted: {string.Join(", ", errors)}");
+        }
+    }
+
     public async Task<Stream> DownloadFileAsync(string id)
     {
         var cdnBasePath = _configuration["App:CdnPath"];
diff --git a/ui/src/services/fileManagement.service.ts b/ui/src/services/fileManagement.service.ts
index a67a4eae..9d0adf5c 100644
--- a/ui/src/services/fileManagement.service.ts
+++ b/ui/src/services/fileManagement.service.ts
@@ -122,6 +122,15 @@ class FileManagementService {
       method: 'GET',
     })
   }
+
+  // Bulk delete items
+  async bulkDeleteItems(itemIds: string[]): Promise<{ data: any }> {
+    return ApiService.fetchData<any>({
+      url: `/api/app/file-management/bulk-delete`,
+      method: 'POST',
+      data: { itemIds },
+    })
+  }
 }
 
 export default new FileManagementService()
\ No newline at end of file
diff --git a/ui/src/views/admin/files/FileManager.tsx b/ui/src/views/admin/files/FileManager.tsx
index 0773d51e..be4d8095 100644
--- a/ui/src/views/admin/files/FileManager.tsx
+++ b/ui/src/views/admin/files/FileManager.tsx
@@ -1,7 +1,7 @@
 import { useState, useEffect, useCallback } from 'react'
 import { Helmet } from 'react-helmet'
 import { Button, Input, Select, toast, Notification, Spinner } from '@/components/ui'
-import { FaFolder, FaCloudUploadAlt, FaSearch, FaTh, FaList, FaArrowUp } from 'react-icons/fa'
+import { FaFolder, FaCloudUploadAlt, FaSearch, FaTh, FaList, FaArrowUp, FaCheckSquare, FaSquare, FaTrash, FaCut, FaCopy } from 'react-icons/fa'
 import Container from '@/components/shared/Container'
 import { useLocalization } from '@/utils/hooks/useLocalization'
 import fileManagementService from '@/services/fileManagement.service'
@@ -60,7 +60,19 @@ const FileManager = () => {
       setLoading(true)
       const response = await fileManagementService.getItems(folderId)
       // Backend returns GetFilesDto which has Items property
-      setItems(response.data.items || [])
+      const items = response.data.items || []
+      // Manual protection for system folders
+      const protectedItems = items.map(item => {
+        const isSystemFolder = ['avatar', 'import', 'activity'].includes(item.name.toLowerCase())
+        return {
+          ...item,
+          isReadOnly: item.isReadOnly || isSystemFolder
+        }
+      })
+      
+      console.log('Fetched items:', protectedItems)
+      console.log('Protected folders check:', protectedItems.filter(item => item.isReadOnly))
+      setItems(protectedItems)
     } catch (error) {
       console.error('Failed to fetch items:', error)
       toast.push(<Notification type="danger">Failed to load files and folders</Notification>)
@@ -227,9 +239,16 @@ const FileManager = () => {
   const handleDeleteItems = async () => {
     try {
       setDeleting(true)
-      for (const item of itemsToDelete) {
-        await fileManagementService.deleteItem({ id: item.id })
+      
+      if (itemsToDelete.length === 1) {
+        // Single item delete - use existing API
+        await fileManagementService.deleteItem({ id: itemsToDelete[0].id })
+      } else {
+        // Multiple items - use bulk delete API
+        const itemIds = itemsToDelete.map(item => item.id)
+        await fileManagementService.bulkDeleteItems(itemIds)
       }
+      
       await fetchItems(currentFolderId)
       setSelectedItems([])
       toast.push(<Notification type="success">Items deleted successfully</Notification>)
@@ -277,6 +296,194 @@ const FileManager = () => {
     }
   }
 
+  // Clipboard state for paste button
+  const [hasClipboardData, setHasClipboardData] = useState(false)
+
+  useEffect(() => {
+    const checkClipboard = () => {
+      setHasClipboardData(!!localStorage.getItem('fileManager_clipboard'))
+    }
+    
+    // Check initially
+    checkClipboard()
+    
+    // Check periodically (in case another tab changes it)
+    const interval = setInterval(checkClipboard, 1000)
+    
+    return () => clearInterval(interval)
+  }, [])
+
+  // Keyboard shortcuts
+  useEffect(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.ctrlKey || e.metaKey) {
+        switch (e.key) {
+          case 'a':
+            e.preventDefault()
+            selectAllItems()
+            break
+          case 'c':
+            e.preventDefault()
+            if (selectedItems.length > 0) {
+              copySelectedItems()
+              setHasClipboardData(true)
+            }
+            break
+          case 'x':
+            e.preventDefault()
+            if (selectedItems.length > 0) {
+              cutSelectedItems()
+              setHasClipboardData(true)
+            }
+            break
+          case 'v':
+            e.preventDefault()
+            pasteItems()
+            break
+          case 'Delete':
+          case 'Backspace':
+            e.preventDefault()
+            if (selectedItems.length > 0) {
+              deleteSelectedItems()
+            }
+            break
+        }
+      } else if (e.key === 'Delete') {
+        e.preventDefault()
+        if (selectedItems.length > 0) {
+          deleteSelectedItems()
+        }
+      }
+    }
+
+    document.addEventListener('keydown', handleKeyDown)
+    return () => {
+      document.removeEventListener('keydown', handleKeyDown)
+    }
+  }, [selectedItems, filteredItems])
+
+  // Bulk operations
+  const selectAllItems = () => {
+    setSelectedItems(filteredItems.map(item => item.id))
+  }
+
+  const deselectAllItems = () => {
+    setSelectedItems([])
+  }
+
+  const deleteSelectedItems = () => {
+    const itemsToDelete = filteredItems.filter(item => selectedItems.includes(item.id))
+    const deletableItems = itemsToDelete.filter(item => !item.isReadOnly)
+    const protectedItems = itemsToDelete.filter(item => item.isReadOnly)
+    
+    if (protectedItems.length > 0) {
+      toast.push(
+        <Notification title="Warning" type="warning">
+          {protectedItems.length} protected system folder(s) cannot be deleted: {protectedItems.map(i => i.name).join(', ')}
+        </Notification>
+      )
+    }
+    
+    if (deletableItems.length > 0) {
+      openDeleteModal(deletableItems)
+      // Remove protected items from selection
+      const deletableIds = deletableItems.map(item => item.id)
+      setSelectedItems(prev => prev.filter(id => deletableIds.includes(id)))
+    }
+  }
+
+  const copySelectedItems = () => {
+    const itemsToCopy = filteredItems.filter(item => selectedItems.includes(item.id))
+    const copyableItems = itemsToCopy.filter(item => !item.isReadOnly)
+    const protectedItems = itemsToCopy.filter(item => item.isReadOnly)
+    
+    if (protectedItems.length > 0) {
+      toast.push(
+        <Notification title="Warning" type="warning">
+          {protectedItems.length} protected system folder(s) cannot be copied: {protectedItems.map(i => i.name).join(', ')}
+        </Notification>
+      )
+    }
+    
+    if (copyableItems.length > 0) {
+      // Store in local storage or context for paste operation
+      localStorage.setItem('fileManager_clipboard', JSON.stringify({
+        operation: 'copy',
+        items: copyableItems,
+        sourceFolder: currentFolderId
+      }))
+      setHasClipboardData(true)
+      toast.push(
+        <Notification title="Copied" type="success">
+          {copyableItems.length} item(s) copied to clipboard
+        </Notification>
+      )
+    }
+  }
+
+  const cutSelectedItems = () => {
+    const itemsToCut = filteredItems.filter(item => selectedItems.includes(item.id))
+    const cuttableItems = itemsToCut.filter(item => !item.isReadOnly)
+    const protectedItems = itemsToCut.filter(item => item.isReadOnly)
+    
+    if (protectedItems.length > 0) {
+      toast.push(
+        <Notification title="Warning" type="warning">
+          {protectedItems.length} protected system folder(s) cannot be moved: {protectedItems.map(i => i.name).join(', ')}
+        </Notification>
+      )
+    }
+    
+    if (cuttableItems.length > 0) {
+      // Store in local storage or context for paste operation
+      localStorage.setItem('fileManager_clipboard', JSON.stringify({
+        operation: 'cut',
+        items: cuttableItems,
+        sourceFolder: currentFolderId
+      }))
+      setHasClipboardData(true)
+      toast.push(
+        <Notification title="Cut" type="success">
+          {cuttableItems.length} item(s) cut to clipboard
+        </Notification>
+      )
+    }
+  }
+
+  const pasteItems = () => {
+    const clipboardData = localStorage.getItem('fileManager_clipboard')
+    if (clipboardData) {
+      try {
+        const clipboard = JSON.parse(clipboardData)
+        if (clipboard.operation === 'copy') {
+          toast.push(
+            <Notification title="Copy" type="info">
+              Copy functionality will be implemented soon
+            </Notification>
+          )
+        } else if (clipboard.operation === 'cut') {
+          toast.push(
+            <Notification title="Move" type="info">
+              Move functionality will be implemented soon
+            </Notification>
+          )
+        }
+      } catch (error) {
+        toast.push(
+          <Notification title="Error" type="danger">
+            Invalid clipboard data
+          </Notification>
+        )
+      }
+    } else {
+      toast.push(
+        <Notification title="Clipboard Empty" type="info">
+          No items in clipboard
+        </Notification>
+      )
+    }
+  }
+
   return (
     <Container>
       <Helmet
@@ -285,105 +492,222 @@ const FileManager = () => {
         defaultTitle="Sözsoft Kurs Platform"
       ></Helmet>
 
-      {/* Toolbar */}
-      <div className="flex flex-col lg:flex-row lg:items-center justify-between gap-4 mb-4 mt-2">
-        <div className="flex items-center gap-2">
-          <Button
-            variant="solid"
-            icon={<FaCloudUploadAlt />}
-            onClick={() => setUploadModalOpen(true)}
-          >
-            Upload Files
-          </Button>
-          <Button
-            variant="default"
-            icon={<FaFolder />}
-            onClick={() => setCreateFolderModalOpen(true)}
-          >
-            Create Folder
-          </Button>
-          {breadcrumbItems.length > 1 && (
-            <Button variant="default" icon={<FaArrowUp />} onClick={goUpOneLevel}>
-              Go Up
-            </Button>
-          )}
-        </div>
+      {/* Enhanced Unified Toolbar */}
+      <div className="bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg p-4 mb-4 mt-2">
+        {/* Main Toolbar Row */}
+        <div className="flex flex-col xl:flex-row xl:items-center justify-between gap-4">
+          {/* Left Section - Primary Actions */}
+          <div className="flex items-center gap-2 flex-wrap min-w-0">
+            {/* File Operations */}
+            <div className="flex items-center gap-2">
+              <Button
+                variant="solid"
+                icon={<FaCloudUploadAlt />}
+                onClick={() => setUploadModalOpen(true)}
+                size="sm"
+              >
+                Upload Files
+              </Button>
+              <Button
+                variant="default"
+                icon={<FaFolder />}
+                onClick={() => setCreateFolderModalOpen(true)}
+                size="sm"
+              >
+                Create Folder
+              </Button>
+            </div>
 
-        <div className="flex items-center gap-4">
-          {/* Search */}
-          <div className="flex items-center">
-            <Input
-              size="sm"
-              placeholder="Search files..."
-              value={filters.searchTerm}
-              onChange={(e) => setFilters((prev) => ({ ...prev, searchTerm: e.target.value }))}
-              prefix={<FaSearch className="text-gray-400" />}
-              className="w-64"
-            />
+            {/* Divider */}
+            <div className="h-6 w-px bg-gray-300 dark:bg-gray-600" />
+
+            {/* Clipboard Operations */}
+            <div className="flex items-center gap-1">
+              <Button
+                variant="plain"
+                icon={<FaCopy />}
+                onClick={copySelectedItems}
+                disabled={selectedItems.length === 0}
+                size="sm"
+                className="text-gray-600 hover:text-blue-600 disabled:opacity-50"
+                title="Copy selected items"
+              />
+              <Button
+                variant="plain"
+                icon={<FaCut />}
+                onClick={cutSelectedItems}
+                disabled={selectedItems.length === 0}
+                size="sm"
+                className="text-gray-600 hover:text-orange-600 disabled:opacity-50"
+                title="Cut selected items"
+              />
+              <Button
+                variant="plain"
+                onClick={pasteItems}
+                disabled={!hasClipboardData}
+                size="sm"
+                className="text-gray-600 hover:text-green-600 disabled:opacity-50"
+                title="Paste items"
+              >
+                Paste
+              </Button>
+            </div>
+
+            {/* Divider */}
+            <div className="h-6 w-px bg-gray-300 dark:bg-gray-600" />
+
+            {/* Selection Actions */}
+            <div className="flex items-center gap-1">
+              {filteredItems.length > 0 && (
+                <Button
+                  variant="plain"
+                  icon={selectedItems.length === filteredItems.length ? <FaCheckSquare /> : <FaSquare />}
+                  onClick={selectedItems.length === filteredItems.length ? deselectAllItems : selectAllItems}
+                  size="sm"
+                  className="text-gray-600 hover:text-blue-600"
+                  title={selectedItems.length === filteredItems.length ? 'Deselect all items' : 'Select all items'}
+                >
+                  {selectedItems.length === filteredItems.length ? 'Deselect All' : 'Select All'}
+                </Button>
+              )}
+              {selectedItems.length > 0 && (
+                <Button
+                  variant="plain"
+                  icon={<FaTrash />}
+                  onClick={deleteSelectedItems}
+                  size="sm"
+                  className="text-gray-600 hover:text-red-600"
+                  title="Delete selected items"
+                >
+                  Delete ({selectedItems.length})
+                </Button>
+              )}
+            </div>
+
+            {/* Navigation */}
+            {breadcrumbItems.length > 1 && (
+              <>
+                <div className="h-6 w-px bg-gray-300 dark:bg-gray-600" />
+                <Button 
+                  variant="plain" 
+                  icon={<FaArrowUp />} 
+                  onClick={goUpOneLevel}
+                  size="sm"
+                  className="text-gray-600 hover:text-blue-600"
+                  title="Go up one level"
+                >
+                  Go Up
+                </Button>
+              </>
+            )}
           </div>
 
-          {/* Sort */}
-          <Select
-            size="sm"
-            options={[
-              { value: 'name-asc', label: 'Name (A-Z)' },
-              { value: 'name-desc', label: 'Name (Z-A)' },
-              { value: 'size-asc', label: 'Size (Small to Large)' },
-              { value: 'size-desc', label: 'Size (Large to Small)' },
-              { value: 'modified-desc', label: 'Modified (Newest)' },
-              { value: 'modified-asc', label: 'Modified (Oldest)' },
-            ]}
-            value={{
-              value: `${filters.sortBy}-${filters.sortOrder}`,
-              label: (() => {
-                const sortOptions = {
-                  'name-asc': 'Name (A-Z)',
-                  'name-desc': 'Name (Z-A)',
-                  'size-asc': 'Size (Small to Large)',
-                  'size-desc': 'Size (Large to Small)',
-                  'modified-desc': 'Modified (Newest)',
-                  'modified-asc': 'Modified (Oldest)',
+          {/* Right Section - Search, Sort, View */}
+          <div className="flex items-center gap-3 flex-wrap justify-end min-w-0">
+            {/* Search */}
+            <div className="flex items-center">
+              <Input
+                size="sm"
+                placeholder="Search files..."
+                value={filters.searchTerm}
+                onChange={(e) => setFilters((prev) => ({ ...prev, searchTerm: e.target.value }))}
+                prefix={<FaSearch className="text-gray-400" />}
+                className="w-48"
+              />
+            </div>
+
+            {/* Sort */}
+            <Select
+              size="sm"
+              options={[
+                { value: 'name-asc', label: 'Name (A-Z)' },
+                { value: 'name-desc', label: 'Name (Z-A)' },
+                { value: 'size-asc', label: 'Size (Small to Large)' },
+                { value: 'size-desc', label: 'Size (Large to Small)' },
+                { value: 'modified-desc', label: 'Modified (Newest)' },
+                { value: 'modified-asc', label: 'Modified (Oldest)' },
+              ]}
+              value={{
+                value: `${filters.sortBy}-${filters.sortOrder}`,
+                label: (() => {
+                  const sortOptions = {
+                    'name-asc': 'Name (A-Z)',
+                    'name-desc': 'Name (Z-A)',
+                    'size-asc': 'Size (Small to Large)',
+                    'size-desc': 'Size (Large to Small)',
+                    'modified-desc': 'Modified (Newest)',
+                    'modified-asc': 'Modified (Oldest)',
+                  }
+                  return sortOptions[
+                    `${filters.sortBy}-${filters.sortOrder}` as keyof typeof sortOptions
+                  ]
+                })(),
+              }}
+              onChange={(option) => {
+                if (option && 'value' in option) {
+                  const [sortBy, sortOrder] = (option.value as string).split('-') as [
+                    SortBy,
+                    SortOrder,
+                  ]
+                  setFilters((prev) => ({ ...prev, sortBy, sortOrder }))
                 }
-                return sortOptions[
-                  `${filters.sortBy}-${filters.sortOrder}` as keyof typeof sortOptions
-                ]
-              })(),
-            }}
-            onChange={(option) => {
-              if (option && 'value' in option) {
-                const [sortBy, sortOrder] = (option.value as string).split('-') as [
-                  SortBy,
-                  SortOrder,
-                ]
-                setFilters((prev) => ({ ...prev, sortBy, sortOrder }))
-              }
-            }}
-          />
+              }}
+              className="min-w-36"
+            />
 
-          {/* View Mode */}
-          <div className="flex border border-gray-300 dark:border-gray-600 rounded">
-            <Button
-              variant="plain"
-              size="sm"
-              icon={<FaTh />}
-              className={classNames(
-                'rounded-r-none border-r',
-                viewMode === 'grid' && 'bg-blue-50 dark:bg-blue-900/20 text-blue-600',
-              )}
-              onClick={() => setViewMode('grid')}
-            />
-            <Button
-              variant="plain"
-              size="sm"
-              icon={<FaList />}
-              className={classNames(
-                'rounded-l-none',
-                viewMode === 'list' && 'bg-blue-50 dark:bg-blue-900/20 text-blue-600',
-              )}
-              onClick={() => setViewMode('list')}
-            />
+            {/* View Mode */}
+            <div className="flex border border-gray-300 dark:border-gray-600 rounded">
+              <Button
+                variant="plain"
+                size="sm"
+                icon={<FaTh />}
+                className={classNames(
+                  'rounded-r-none border-r',
+                  viewMode === 'grid' && 'bg-blue-50 dark:bg-blue-900/20 text-blue-600',
+                )}
+                onClick={() => setViewMode('grid')}
+                title="Grid view"
+              />
+              <Button
+                variant="plain"
+                size="sm"
+                icon={<FaList />}
+                className={classNames(
+                  'rounded-l-none',
+                  viewMode === 'list' && 'bg-blue-50 dark:bg-blue-900/20 text-blue-600',
+                )}
+                onClick={() => setViewMode('list')}
+                title="List view"
+              />
+            </div>
           </div>
         </div>
+
+        {/* Selection Status Bar - Show when items are selected */}
+        {selectedItems.length > 0 && (
+          <div className="mt-3 pt-3 border-t border-gray-200 dark:border-gray-700">
+            <div className="flex items-center justify-between">
+              <div className="flex items-center gap-2">
+                <span className="text-sm text-blue-700 dark:text-blue-300 font-medium">
+                  {selectedItems.length} item{selectedItems.length !== 1 ? 's' : ''} selected
+                </span>
+                <span className="text-xs text-gray-500">
+                  ({filteredItems.filter(item => selectedItems.includes(item.id)).length} of {filteredItems.length})
+                </span>
+              </div>
+              <div className="flex items-center gap-2">
+                <Button
+                  variant="plain"
+                  size="xs"
+                  onClick={deselectAllItems}
+                  className="text-gray-500 hover:text-gray-700"
+                >
+                  Clear Selection
+                </Button>
+              </div>
+            </div>
+          </div>
+        )}
       </div>
 
       {/* Breadcrumb */}
@@ -433,6 +757,7 @@ const FileManager = () => {
                 selected={selectedItems.includes(item.id)}
                 onSelect={handleItemSelect}
                 onDoubleClick={handleItemDoubleClick}
+                onToggleSelect={handleItemSelect}
                 onCreateFolder={(parentItem) => {
                   // Klasör içinde yeni klasör oluşturmak için parent klasörü set et
                   setCurrentFolderId(parentItem.id)
diff --git a/ui/src/views/admin/files/components/FileItem.tsx b/ui/src/views/admin/files/components/FileItem.tsx
index 5dd7c250..231dc2ac 100644
--- a/ui/src/views/admin/files/components/FileItem.tsx
+++ b/ui/src/views/admin/files/components/FileItem.tsx
@@ -30,6 +30,7 @@ export interface FileItemProps {
   onDelete?: (item: FileItemType) => void
   onDownload?: (item: FileItemType) => void
   onPreview?: (item: FileItemType) => void
+  onToggleSelect?: (item: FileItemType) => void
   className?: string
 }
 
@@ -122,6 +123,7 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
     onDelete,
     onDownload,
     onPreview,
+    onToggleSelect,
     className,
   } = props
 
@@ -135,6 +137,15 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
     onDoubleClick?.(item)
   }
 
+  const handleCheckboxChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    e.stopPropagation() // Prevent item selection when clicking checkbox
+    onToggleSelect?.(item)
+  }
+
+  const handleCheckboxClick = (e: React.MouseEvent) => {
+    e.stopPropagation() // Prevent item selection when clicking checkbox
+  }
+
   const actionMenuItems: FileActionMenuItem[] = [
     // Preview - sadece dosyalar için
     ...(item.type === 'file' && onPreview
@@ -169,8 +180,8 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
           },
         ]
       : []),
-    // Rename - her şey için
-    ...(onRename
+    // Rename - sadece read-only olmayanlar için
+    ...(onRename && !item.isReadOnly
       ? [
           {
             key: 'rename',
@@ -180,8 +191,8 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
           },
         ]
       : []),
-    // Move - her şey için
-    ...(onMove
+    // Move - sadece read-only olmayanlar için
+    ...(onMove && !item.isReadOnly
       ? [
           {
             key: 'move',
@@ -191,8 +202,8 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
           },
         ]
       : []),
-    // Delete - her şey için
-    ...(onDelete
+    // Delete - sadece read-only olmayanlar için
+    ...(onDelete && !item.isReadOnly
       ? [
           {
             key: 'delete',
@@ -205,11 +216,7 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
       : []),
   ]
 
-  // Debug için
-  useEffect(() => {
-    console.log('Action menu items for', item.name, ':', actionMenuItems)
-    console.log('Props:', { onCreateFolder: !!onCreateFolder, onRename: !!onRename, onMove: !!onMove, onDelete: !!onDelete })
-  }, [actionMenuItems, item.name])
+
 
   const dropdownList = (
     <div className="py-1 min-w-36">
@@ -276,6 +283,18 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
         onClick={handleClick}
         onDoubleClick={handleDoubleClick}
       >
+        {/* Checkbox */}
+        <div className="col-span-1 flex items-center">
+          <input
+            type="checkbox"
+            checked={selected}
+            onChange={handleCheckboxChange}
+            onClick={handleCheckboxClick}
+            disabled={item.isReadOnly}
+            className="w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 rounded focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600 disabled:opacity-50 disabled:cursor-not-allowed"
+          />
+        </div>
+
         {/* File Icon or Preview */}
         <div className="col-span-1 flex items-center">
           <div className="w-8 h-8">
@@ -290,10 +309,15 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
         </div>
 
         {/* File Name */}
-        <div className="col-span-4 flex items-center min-w-0">
+        <div className="col-span-3 flex items-center min-w-0 gap-2">
           <p className="text-sm font-medium text-gray-900 dark:text-gray-100 truncate">
             {item.name}
           </p>
+          {item.isReadOnly && (
+            <span className="inline-flex items-center px-1.5 py-0.5 rounded-full text-xs font-medium bg-orange-100 text-orange-800 dark:bg-orange-900/30 dark:text-orange-300 flex-shrink-0">
+              Protected
+            </span>
+          )}
         </div>
 
         {/* File Type */}
@@ -323,25 +347,29 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
         
         {/* Action Menu */}
         <div className="col-span-1 flex items-center justify-end opacity-0 group-hover:opacity-100 transition-opacity relative">
-          <button
-            className="p-1 rounded hover:bg-gray-200 dark:hover:bg-gray-600"
-            onClick={(e) => {
-              e.stopPropagation()
-              setDropdownOpen(!dropdownOpen)
-            }}
-          >
-            <HiEllipsisVertical className="h-4 w-4" />
-          </button>
-          
-          {dropdownOpen && actionMenuItems.length > 0 && (
+          {!item.isReadOnly && (
             <>
-              <div 
-                className="fixed inset-0 z-10" 
-                onClick={() => setDropdownOpen(false)}
-              />
-              <div className="absolute right-0 top-full mt-1 z-20 bg-white dark:bg-gray-800 rounded-md shadow-lg border dark:border-gray-600">
-                {dropdownList}
-              </div>
+              <button
+                className="p-1 rounded hover:bg-gray-200 dark:hover:bg-gray-600"
+                onClick={(e) => {
+                  e.stopPropagation()
+                  setDropdownOpen(!dropdownOpen)
+                }}
+              >
+                <HiEllipsisVertical className="h-4 w-4" />
+              </button>
+              
+              {dropdownOpen && actionMenuItems.length > 0 && (
+                <>
+                  <div 
+                    className="fixed inset-0 z-10" 
+                    onClick={() => setDropdownOpen(false)}
+                  />
+                  <div className="absolute right-0 top-full mt-1 z-20 bg-white dark:bg-gray-800 rounded-md shadow-lg border dark:border-gray-600">
+                    {dropdownList}
+                  </div>
+                </>
+              )}
             </>
           )}
         </div>
@@ -364,31 +392,45 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
       onClick={handleClick}
       onDoubleClick={handleDoubleClick}
     >
-      {/* Action Menu */}
-      <div className="absolute top-3 right-3 opacity-0 group-hover:opacity-100 transition-all duration-200">
-        <button
-          className="p-1.5 rounded-full bg-white dark:bg-gray-700 shadow-md hover:shadow-lg hover:bg-gray-50 dark:hover:bg-gray-600 transition-all duration-200"
-          onClick={(e) => {
-            e.stopPropagation()
-            setDropdownOpen(!dropdownOpen)
-          }}
-        >
-          <HiEllipsisVertical className="h-4 w-4 text-gray-600 dark:text-gray-300" />
-        </button>
-        
-        {dropdownOpen && actionMenuItems.length > 0 && (
-          <>
-            <div 
-              className="fixed inset-0 z-10" 
-              onClick={() => setDropdownOpen(false)}
-            />
-            <div className="absolute right-0 top-full mt-2 z-20 bg-white dark:bg-gray-800 rounded-md shadow-lg border dark:border-gray-600">
-              {dropdownList}
-            </div>
-          </>
-        )}
+      {/* Checkbox */}
+      <div className="absolute top-3 left-3 z-10">
+        <input
+          type="checkbox"
+          checked={selected}
+          onChange={handleCheckboxChange}
+          onClick={handleCheckboxClick}
+          disabled={item.isReadOnly}
+          className="w-4 h-4 text-blue-600 bg-white border-gray-300 rounded focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600 shadow-sm disabled:opacity-50 disabled:cursor-not-allowed"
+        />
       </div>
 
+      {/* Action Menu */}
+      {!item.isReadOnly && (
+        <div className="absolute top-3 right-3 opacity-0 group-hover:opacity-100 transition-all duration-200">
+          <button
+            className="p-1.5 rounded-full bg-white dark:bg-gray-700 shadow-md hover:shadow-lg hover:bg-gray-50 dark:hover:bg-gray-600 transition-all duration-200"
+            onClick={(e) => {
+              e.stopPropagation()
+              setDropdownOpen(!dropdownOpen)
+            }}
+          >
+            <HiEllipsisVertical className="h-4 w-4 text-gray-600 dark:text-gray-300" />
+          </button>
+          
+          {dropdownOpen && actionMenuItems.length > 0 && (
+            <>
+              <div 
+                className="fixed inset-0 z-10" 
+                onClick={() => setDropdownOpen(false)}
+              />
+              <div className="absolute right-0 top-full mt-2 z-20 bg-white dark:bg-gray-800 rounded-md shadow-lg border dark:border-gray-600">
+                {dropdownList}
+              </div>
+            </>
+          )}
+        </div>
+      )}
+
       {/* File/Folder Icon or Preview */}
       <div className="flex justify-center mb-3">
         {item.type === 'file' && item.mimeType?.startsWith('image/') ? (
@@ -404,9 +446,16 @@ const FileItem = forwardRef<HTMLDivElement, FileItemProps>((props, ref) => {
 
       {/* File/Folder Name and Details */}
       <div className="text-center">
-        <p className="text-sm font-medium text-gray-900 dark:text-gray-100 truncate mb-1">
-          {item.name}
-        </p>
+        <div className="flex items-center justify-center gap-1 mb-1">
+          <p className="text-sm font-medium text-gray-900 dark:text-gray-100 truncate">
+            {item.name}
+          </p>
+          {item.isReadOnly && (
+            <span className="inline-flex items-center px-1.5 py-0.5 rounded-full text-xs font-medium bg-orange-100 text-orange-800 dark:bg-orange-900/30 dark:text-orange-300">
+              Protected
+            </span>
+          )}
+        </div>
 
         {/* File Size and Type */}
         {item.type === 'file' && (