[Jbees000]

What's the best virus software to run for Windows 7? I am running McAffee and it seems to make my computer very slow.

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I'm happy with Microsoft Security Essentials.

[Ztruker]

I'm happy with Microsoft Security Essentials.

[SRX660]

I have been using the Free Avast AV for years now. I have had norton, McAfee, Trend, AVG, and a few others and find all BUT AVG and Avast just too intrusive in the OS to keep them on my computers. AVG was very good but kept me from downloading some things it saw as malware( daemon tools, etc)which Avast did not, so i use avast. I do notice that Avast updates almost daily, and when there is a lot of revisions it reinstalls a new AV with all the updates.

SRX660

[admin]

For paid antivirus my favorites are Norton Antivirus 2012, and Trend Titanium 2012. Both are light on system resources, and use reputation scores to help avoid social engineering and polymorphic download infections.

Microsoft Security Essentials is the lightest on system resources of any free or paid antivirus. However, you'll only get the benefits of reputation when used with IE9 (smart screen). Avast is also a nice free antivirus, and very good at blocking drive-by download infections from hacked sites.