How do I find out what a program is being used by so I can delete it?
 

I've got a stupid file I downloaded on my desktop, and whenever I try to delete it, it tells me it's in use. I just rebooted my comp and I think it's some funky virus. I've done virus scan and this and that and nothing turns up. How can I find out what's using this and turn it off to delete the file?

Have you tried deleting it in Safe Mode ?

Task manager, end task (filename)

If not, see if a file sharing program is uploaidng it or if some sort of spyware is using it.

Step 1) Use the search this form feature.

Step 2) Find this tread or one of the others like it.

Step 3) Enjoy