Norton update definitions

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Most Popular. New Releases. Desktop Enhancements. Networking Software. Trending from CNET. Update Norton Antivirus virus definitions and antivirus products of multiple versions.

Virus Definitions for Norton AntiVirus 9. Update Norton AntiVirus 9. Norton Security and Antivirus Free. Protect your mobile device against loss, theft, and malware. Surround yourself with protection from viruses, spyware, fraudulent Web sites, and phishing scams. Protect your PC from viruses and malware. Norton Security Deluxe Free to try. Stop online threats without slowing down your PC. Norton Security Premium Free to try. Protect your entire family's digital life.

Update Symantec virus definitions and antivirus products. 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. Symantec Norton AntiVirus X 9. Norton AntiVirus for Mac Norton Antivirus Trusted antivirus solution.