Dropdown menus are not appearing in File Explorer

1. Restart File Explorer 
Open Task Manager by pressing Ctrl+Shift+Esc 
Find "Windows Explorer" → Right click and select "Restart" 
2. Check for updates 
Go to Settings → Windows Update → Install all available updates 
3. Reset File Explorer settings 
Open File Explorer 
Click on View → Options → Reset Folder View ⚙ Create a new user account to test Settings → Accounts → Family and Other Users → Add Another User View" 
4. Create a new user account to test 
Settings → Accounts → Family and Other Users → Add Another User 
Log in with the new account to check if the problem is solved 
5. Run a system file check 
Run CMD as an administrator 
Enter the command: 
cmd 
sfc /scannow 
6. Administrator PowerShell run: 
powershell 
Get- AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"} 
7. Clean boot troubleshooting 
Press Win+R and enter msconfig 
Select "Selective Startup" → Cancel "Load Startup Items" 
Services tab → Check "Hide Microsoft Services" → Disable All 
Restart your computer to test 
8. Reset Windows 
Settings → System → Recovery → Reset this computer 
Select "Keep my files".