Computer is running very slow(fun moods)

hey guys

my computer has been running very slow recently and fire fox and google have stoped working with internet explorer also going a bit funny. i have run many virus scanners but when they find the problem they say the file cant be found i am getting close to rebooting windows can you give me any advice?

Ali

follow this guide and u should get rid of funmoods: http://forum.avast.com/index.php?topic=53253.0