So evidently a program I downloaded gave me a virus. I'm barely able to even be on the computer. Random .tmp files are running in the background that are bascially killing my OLD computer. I delete them, but then when I restart they reappear. Also winmgmt.exe is running which it usually doesn't. I've tried restoring to an earlier date but it won't let me. I have Avast Professional, but I don't have the time to run it fully. If their is a free effective program out there that will get rid of this virus, then please let me know.