Question by : What is The Best And Better Anti Virus in Netbook “Acer Aspire Windows 7″ ? For Free 
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` Please Give Me A link Too . So i Can Download it Have a Great Day !
Best answer:
Answer by Win_se7enZ
for better and lightest for use resources is comodo internet security
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google it, there can be answers…or see instructions or call tech.support
Either Avast 5 Free Edition or Microsoft Security Essentials. Both are extremely effective, and use very little computer resource whilst protecting your system. In my experience, the worst antiviruses are Norton and McAfee.
Avast 5 Free anti-virus (requires product registration, if you want to use it for longer than 30 days):
http://www.avast.com/en-gb/free-antivirus-download
MS Security Essentials (requires a Windows installation that passes the ‘Genuine windows check’):
http://www.microsoft.com/security_essentials/
Hope i’ve helped