why do you need to update anti virus software

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It is important to constantly update the anti-virus software on a computer because computers are regularly threatened by new viruses. The anti-virus updates contain the latest files needed to combat new viruses and protect your computer. Signature files contain the latest list and behavior of known viruses. Anti-virus programs release signature file updates regularly–sometimes daily, sometimes more often–because new viruses are being identified on a daily basis. It is best to configure your anti-virus program to automatically check for updates these updates. The scan engine is where the signature files are loaded. It is responsible for scanning and performing actions such as cleaning, quarantining and deleting identified viruses in your computer.

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Updates on scan engines are intermittent and not as regular as signature files. When a scan engine is updated, it is either to fix a scan engine issue or to make it scan faster, perform better and detect fewer false positives. Some anti-virus programs can scan a computer for any vulnerability. Anti-virus software makers have added this feature because security flaws in operating systems are entry points for viruses to hack into the computer. Microsoft s Windows Update automatically checks for vulnerabilities and installs patches on the computer.
How do I update my antivirus program? Keeping your computer safe from is extremely important, especially if your computer is connected to the Internet. software can help you keep your computer safe, but only if you keep its up-to-date.

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Use the steps on this page to make sure that your antivirus program has the newest information about viruses that might infect your computer. The majority of new antivirus programs (programs or computers purchased after the year 2000) enable users to update their antivirus program through the software. Open the antivirus program and look for Update, Check for updates, Live Update, or something similar. Below are some examples of how a user may update their antivirus program. Microsoft Windows users running recent versions of McAfee can double-click on the Vshield icon in their and click Check for VirusScan update to check for available updates. Microsoft Windows users running recent versions of Symantec (Norton) can double-click on the program icon in their Systray and click the Live Update to check for available updates.

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If you do not have an antivirus program installed on your computer, we strongly recommend purchasing one at your local electronics store or downloading one from the Internet. Links to popular antivirus programs are listed further down this same page. Some antivirus programs do not include an update utility. If you are using such software, you should be able to download new virus definitions directly from the developers web page. It should be noted that some developers require you to know what version you are running to get updates. Below are links to web pages for some of the more popular antivirus programs.

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