Un-install on Windows 11 may leave system in a weird state

[fire-eggs]

1. Running Windows 11, Darkthumbs installed
2. Using 'Add and remove programs', un-install DarkThumbs
3. Receive a message "File Explorer will be stopped"
4. Desktop and taskbar disappears, uninstaller churns for a while then finishes.
5. File Explorer is not successfully restarted.

Ctrl+Alt+Del, select Task Manager, run a new task, type "Explorer". Windows taskbar reappears, Desktop does not. A restart appears to be necessary.