That's never been advised in any forum I've been to. You pick one and then get second opinion scans.
2. What free security scan? Some are SCAMS!
3. Grif is scam free and free. Here's Grif's advice on second opinion scans.
http://forums.cnet.com/7726-6122_102-5509131.html?tag=posts;msg5509131
Bob
I recently ran one of those free security scans, and it found more than 700 issues including Trojans, Adware, Viruses etc. I have both Norton and McAfee on my PC and they never find anything. Are those free scans just a scam?

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