Hello,
Sorry to hear you are having issues. But, this is the first time I read about, "unlock desktop" having to do with Start11. I don't think Start11 has any control on your desktop or desktop context menu. You sure its from Start11? Have you tried reinstall Start11, reboot immediately, and retest the issue?
Also, if you have Windows Pro, you could test install in Windows Sandbox and see if the issue also appear while in the Sandbox.
Thank you,
Basj,
Stardock Community Assistant.