Virus Definition File

Virus definitions are typically installed during an update of anti-virus software. Their purpose is to instruct the program on what malicious codes it should be looking for when a hard drive is scanned. Most anti-virus solutions employ automatic mechanisms that update virus definitions with little to no action required by the end user. More advanced anti-virus programs enable users to obtain virus definitions via automatic intervals set by the company. While these updates may occur without a user’s knowledge, the program will display a dialog box on the screen indicating that the virus definitions have been successfully updated. The automatic updating of virus definitions has greatly improved the overall efficiency of many anti-virus programs. In fact, several new operating systems come pre-installed with some type of anti-virus software available on a trial basis. These security solutions are well worth purchasing the full edition. Once activated, the program provides easy management, automatic updates and solid protection against crippling system threats.