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Windows Live OneCare


Before installing, make sure to uninstall all other antivirus or firewall programs you currently have on your computer: Learn more.

Try Windows Live OneCare free for 90 days
Install the 90-day free trial of Windows Live OneCare

Install Windows Live OneCare on up to three computers
Already have Windows Live OneCare? Install it on an additional PC.

 


Try Windows Live OneCare for Server to protect your small business Windows Server platforms.