This is good also, will scan your computer for you.
http://housecall.trendmicro.com/
A friend brought his laptop to my house that was almost unusable. We ran Trend Micro Housecall and got rid of several malware but 1 wouldn’t budge.
Kaspersky got rid of it, and my friend now runs Kaspersky.
I run Trend Micro on my PCs and am happy with it.
My 2 month old Mac Book Pro is naked and during the next year plan to go all Mac.
Run Trend Micro Internet Security or F-Prot, and you won’t have these problems.
Also, supervise the kids.