Don't Use Anti-Virus Software
We always say that nobody should really ever use anti-virus software. It makes your computer slow, and causes other problems. Meanwhile, it doesn't provide any real protection. The only good protection is a NAT router and a non-stupid user. If you do stupid shit on your computer, you will get virussed and spywared, no matter what tools you think are protecting you. If you play it smart, you will never have a problem. Well, something just happened that gives one more reason not to use anti-virus software.McAfee quarantines svchost.exe on millions of WinXP machines worldwide
It can break your computer, just like a virus.