Symantec Norton AntiVirus X Updates for Mac

Symantec Norton AntiVirus X 9.x-10.x Update for Mac October 16, 2018

Keep your Norton Anti-Virus for Mac up to date.

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Quick Facts

Upgrade/Patch
macOS
221 MB
27,501
4.1 19 votes

Norton Anti-Virus 9.x/10.x Defs are the latest anti-virus detection files.

The installer will automatically update Norton AntiVirus for Mac virus definitions and engine files to detect and repair the most recently discovered Macintosh viruses. This file is a self-extracting archive which contains the Norton AntiVirus Virus Definitions Installer.

Once downloaded and expanded on your hard drive, simply double-click on the Installer and the appropriate files will be installed on your computer.

They are also available via the LiveUpdate feature in Norton Anti-Virus 9.x/10.x.

How to update Symantec Norton AntiVirus for Mac:

  • Click on the download now button found here.
  • Depending on the version of your Norton product the Intelligent Updater file should be:
    • For Norton AntiVirus 11.x (Intel Processor), click the first file name in the list. The file name starts with NavM_Intel_Installer. e.g. NavM_Intel_Installer_20110323_US.zip.
    • For Norton AntiVirus 11.x (PowerPC processor) and Norton AntiVirus 10.x or earlier versoins (PowerPC or Intel processor), click the second file in the list. The file name starts with NavM9_Installer. e.g. NavM9_Installer_20110323_US.zip.
  • Once the file is downloaded, extact the zip file.
  • Double-click the installer file SymantecAVDefs_ppc.pkg.
  • If prompted, type your Administrator password.
  • Click Install.
  • After the virus definitions are updated, click Quit at the next prompt.