Digital Wanderer

Haha. I set the access permissions for my main music folder so that even I can't delete anything.
It's a great feature.
For anyone who needs this, here's how.
First, disable Tools->Folder Options->Simple file sharing
Then right-click the folder, Properties->Security, then advanced, then add
Enter  Everyone, which means all users, click ok, and check Deny next to Delete
When asked whether you want to apply it to subdirectories, agree.
If you need to delete something, remove this restriction in advanced security  (it appears there as a separate line), delete the files, and then create the restriction again.

I accept no responsibility for ruined lives.