The last place I worked used McAfee. Every Thursday afternoon they would run a mandatory scan. It took all the resources on the PC and made it impossible to do any work.

>Just got through troubleshooting a client's laptop, a nice Dell with McAfee SecurityCenter factory-installed. Was running fine until yesterday, suddenly she couldn't get on the Internet.
>
>Turned off McAfee Firewall. Ran multiple diagnostics, troubleshooters and configuration tests. Problem persists.
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>Completely uninstalled McAfee - problem instantly fixed. Now running MS Security Essentials.
>
>If you're using McAfee consumer AV, do yourself a favour and get rid of it before it bites you.
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>This is not the first time I've personally seen McAfee impair the functionality of a customer's equipment. My understanding is Symantec is a little better since the major '09 rewrite but I still wouldn't touch it with a barge pole, either.
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>Antivirus is evil, plain and simple. Use it as little as you think you can get away with.
>
>What's particularly scary is Intel bought McAfee, and is making noises about baking McAfee AV technology right into motherboards.
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>/SET RANT OFF