How to fix pictures thumbnail in windows ?

Here are some ways to fix pictures thumbnail in Windows 11:

1. Check the File Explorer settings.
• Open File Explorer.
• Click on the three dots button in the top right corner.
• Select Options.
• In the View tab, make sure that the Always show icons, never thumbnails option is unchecked.
2. Restore File Explorer options to default.
• Open File Explorer.
• Click on the three dots button in the top right corner.
• Select Reset Folder Options.
• In the confirmation dialog, click Reset.
3. Change Visual Effect Settings in Windows 11.
• Open the Start menu.
• Search for Adjust the appearance and performance of Windows.
• Click on the Adjust the appearance and performance of Windows app.
• In the Performance Options window, under the Visual Effects tab, select Adjust for best appearance.
• Click OK.
4. Use Disk Cleanup to delete thumbnail cache.
• Open File Explorer.
• Right-click on the drive where your pictures are stored.
• Select Properties.
• Click on the Disk Cleanup button.
• In the Disk Cleanup dialog, select the Thumbnails checkbox.
• Click OK.
5. Use Command Prompt to remove thumbnail cache.
• Open Command Prompt as administrator.
• Type the following command and press Enter:

o   del /f /s /q %LocalAppData%\Microsoft\Windows\Explorer\thumbcache_*.db

6. Run SFC scan.
• Open Command Prompt as administrator.
• Type the following command and press Enter:

o   sfc /scannow

7. Run the DISM Tool.
• Open Command Prompt as administrator.
• Type the following command and press Enter:

o   DISM /Online /Cleanup-Image /RestoreHealth

8. Use Stellar Repair for Photo.
• If the above methods do not work, you can try using a third-party tool like Stellar Repair for Photo to fix the corrupted image thumbnails.

I hope this helps! Let me know if you have any other questions.