AVG and Kaspersky seem to be the favorites of not only this forum but also the tech geeks of the world. I've been an avid AVG fan for years. The free version has worked wonderfully for myself and every customer I've installed it for.
A quick note: The MS OneCare scored dead last on a recent antivirus evaluation. Surprising to many Norton and McAfee did very well however, that still doesn't excuse them for the resource hogs they are and the way they try to take control of any pc they are running on.
Here is the link to the article
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