Norton antivirus 2011 virus definitions update

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Microsoft is done with Xbox One. Windows Windows. Most Popular. New Releases. Desktop Enhancements. Networking Software. Trending from CNET. Update Norton Antivirus virus definitions and antivirus products of multiple versions. Norton Security and Antivirus Free. Protect your mobile device against loss, theft, and malware. Intrusion Protection defends your PC from web-based attacks so you can surf with confidence. Download Certified Similar to 3 News. Windows bit Windows bit Norton Last updated:.

January 13, Symantec Corporation. User rating:. In the table left, click on the link that will work for your version of Windows. Save the file to your Desktop. When the file has finished downloading, go to your Desktop and double-click the file. Follow the prompts to install the update.