Tallgeese

Hi, I'm new here. I tried installing Red Alert (the original) & thanks a lot you guys really know your stuff & it worked on my Laptop that uses XP. Thanks a lot!!!! However, I made some serious errors & now the AUTOEXEC.NT ended up on my desktop (silly me) & I'm trying (without success) to delete it. Can any of you tell me how to delete it? It keeps saying that it's being used by someone or other programs. PS: It's also on my USB & I can't shake it off