I'm on version 1803 of Windows 10. A couple of days ago I accidentally moved a file to the desktop, and all attempts to move it back or delete it have failed. I copied it back to where it needed to go, but the original is still stuck on the desktop.
It doesn't give me any error messages when I try to delete it, it just gets stuck. If I use File Explorer, it says "calculating" and never moves forward. If I use Command Prompt or PowerShell, they go to the next line but never give any output. I've tried booting in safe mode, I've tried dragging it to the Recycle Bin, I've tried using the context menu, I've tried using the delete key, all without success. It's an MP3 file, and it still plays fine so it is actually there. I have ownership of the file. I can add other files to the desktop and delete them.
I don't have a 3rd party anti-virus. I don't know if it's related, but it seems like Windows Explorer is also using more CPU than usual since this started. It hovers around 15-18%.