If you insist on downloading .exe, .zip, .rar files you will need these links
to repair your computer.
go to one of the Free computer Help sites listed here, They really know what there doing. Register and post in there
forum, They will instruct you to D/L & run software that can be trusted,
Not all sites are Genuine, These three are recommended by US & tekies.
http://forums.spywareinfo.com/index.php?showtopic=79038 http://www.castlecops.com/HijackThis.html http://www.bleepingcomputer.com/
If the site you choose gives you good help, Tell us it helps others.
Peace.