user psi_lion on May 24, 2022

1. Reboot your computer

2. Don't switch virtual desktop during next steps

3. Open settings and set background to slideshow

4. Open registry editor and remove key "Wallpaper" in each subtree in \HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\VirtualDesktops\Desktops\ (each subtree is one virtual desktop)

5. Reboot the computer again

6. Right-click somewhere on wallpaper and click "next desktop wallpaper"

Now you can safely switch desktop or reboot your computer.