I had a licensed copy of Windows 11 on my licensed copy of Parallels Desktop. I responded to a link in Windows 11 offering to upgrade itself. The upgrade got stalled upon a Windows restart. I watched a black screen with a "spinner" icon for several days. I tried restarting the VM, but it just returned to the same state. Finally, out of frustration, I told Parallels Desktop to delete my Windows 11 VM but not to delete the files. Then I created a new Windows 11 VM, during which process Parallels Desktop downloaded the installation files from Microsoft and installed them. After I got the new Windows 11 VM running, I saw that I had to "activate" it and I couldn't find the activation code that I had used in my deleted Windows 11 VM. I am hoping either: To restore my deleted (but files not removed) Windows 11 VM; or To locate the Windows registry files for my deleted Windows 11 VM, so I can extract the activation code from it. So far, Parallels Support hasn't been very helpful. (But if they ever come through with something useful, I'll be sure to post it here.) Thanks.