|That's simple use numerous good free (yes, I said free) removers (not trials that will give you false positives and try to coax you into buying them), remove spyware, viruses, rootkits and keyloggers.|
Use a good anti-virus, ones to stay away from IMO are Norton and McAfee. If you use those 2 be SURE to GO to their websites and use their respective uninstallers or no other AV's or firewalls will work correctly as they are imbedded in your operating system. Some free anti-viruses outshine them totally in performance and resource useage.
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how do i remove warning harmful viruses detected on your computer
Some HELP in posting on Computing.net plus free progs and instructions Cheers