Norton AntiVirus defends your PC against detected viruses, spyware, bots, worms, and more while minimising the performance impact or getting in your way. The improved Norton Protection System features multi-layered protection technologies that work together to proactively block attacks and detect and remove threats before they can harm your PC.
Intrusion Protection defends your PC from web-based attacks so you can surf with confidence. And new Vulnerability Protection blocks security holes in your PC's operating system, applications, browsers, and browser plug-ins to prevent hackers from exploiting them.
How to download and install a Symantec Norton AntiVirus Definition update:
- Check whether your version of Windows is 32-bit or 64-bit.
- 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.
Supports the following versions of Symantec antivirus software:
- Norton AntiVirus 2000 for Windows 9x/NT/2000
- Norton AntiVirus 2001 for Windows 95b/98/NT/2000/Me
- Norton AntiVirus 2002 Professional Edition
- Norton AntiVirus 2002 for Windows 98/Me/NT/2000/XP Home/XP Pro
- Norton AntiVirus 2003 Professional Edition
- Norton AntiVirus 2003 for Windows 98/Me/2000/XP Home/XP Pro
- Norton AntiVirus 2004 Professional Edition
- Norton AntiVirus 2004 for Windows 98/Me/2000/XP Home/XP Pro
- Norton AntiVirus 2005 for Windows 98/Me/2000/XP Home/XP Pro
- Norton AntiVirus 7.x Corporate Edition Client
- Norton AntiVirus for Microsoft Exchange (Intel)
- Norton SystemWorks (all versions)
- Norton UtiliEnter your state hereties for Windows 95/98 (all versions)
- Symantec AntiVirus 3.0 for CacheFlow Security Gateway
- Symantec AntiVirus 3.0 for Inktomi Traffic Edge
- Symantec AntiVirus 3.0 for NetApp Filer/NetCache
- Symantec AntiVirus 3.1 for SMTP Gateways for Windows
- Symantec AntiVirus 8.0 Corporate Edition Client
- Symantec AntiVirus 8.1 Corporate Edition Client
- Symantec AntiVirus 9.0 Corporate Edition Client
- Symantec AntiVirus/Filtering 3.02 for Microsoft Exchange 2000
- Symantec AntiVirus/Filtering 3.1 for Domino
- pcAnywhere32 7.5 and higher for Windows NT