The Avast Virus Definitions allow manual updates of your Avast Free Antivirus, Avast Pro Antivirus, and Avast Internet Security in case you do not have an internet connection or in case auto update fails.To manually update virus definitions just run the vpsupd.exe file you can download from the FileHorse site and follow the instructions.A feature of most of their programs is their ability to update themselves automatically. If they are connected to the Internet, virus database updates are downloaded and installed automatically without any user action. The availability of a new version is checked when an Internet connection is established, and every four hours afterward. Update files can also be downloaded from these pages if required, for e... Read More »

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