Hello,
To delete network shares with thumbs.db with the Registry, use these steps:
- Open Start.
- Search for regedit, right-click the top result, and select the Run as administrator option.
- Browse the following path:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows - Right-click the Windows folder, select the New submenu, and click on Key.

- Name the key Explorer and press Enter.
- Right-click the newly created key, select the New submenu, and click on the “DWORD (32-bit) Value” option.

- Name the DWORD DisableThumbsDBOnNetworkFolders and press Enter.
- Double-click the newly created DWORD and change its value from 0 to 1.

- Click the OK button.
- Restart your computer.
Once you complete the steps, the new settings will apply, and you should now be able to delete thumbs.db files without the “The action can’t be completed because the file is open in Windows Explorer” message.