well it exist two ways of opening your windows, i dont know what the other way is calld, but when you have opend windows in that way you should go to the directory were the file is held, then you should be able to remove it as in the other opening way you can remove protected files, anyway, you should look closelty cos it could be backups running. id say it most risk you find it in win32 folder. I hope i gave you a little bit of help!