Cannot delete locked .INF file from desktop

Okay,
I go to a school where everyone can place everything into one server.
Someone put an autorun.inf virus in all the folders, including mine.
I ended up having the virus on my flashdrive, but wasn't able to delete it through a PC.
A friend said that fellow classmates have been able to delete it through Macs, so I gave it a shot. (This virus doesn't affect Macs, by the way.)
I was able to remove it from my flashdrive, but I cannot remove it from my desktop.

It's just sitting there, locked.
I can't find a way to unlock it, I've tried control+click, right click+delete...

Is there a way to remove it?

Message was edited by: RueLi