PCWorld: How to Upgrade to the Latest Antivirus Software

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Signature updates are essential; but every two or three years, you also need to upgrade to a newer integrated security package.

By Nick Mediati
Jun 26, 2011

If you're running antivirus software from two or three years ago, you should up­­grade to the most recent version, even if you still receive up-to-date malware signature files for the older edition. The underlying technology for antivirus software has im­­proved significantly in recent years.

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