Download the latest free virus definition files and update Avast antivirus

Avast Virus Definitions

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Download Avast Virus Definitions VPS February 21th 2024

Avast Virus Definitions

  -  242 MB  -  Freeware
  • Latest Version

    Avast Virus Definitions VPS February 21th 2024 LATEST

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10

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  • Author / Product

    AVAST Software / External Link

  • Old Versions

  • Filename


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 example, if their computer does not have an Internet connection. Updates are usually released on a daily basis.

Download Updates

The Avast Virus Definitions is a crucial component of the Avast antivirus software. It consists of a vast database that contains information about known viruses, malware, and other malicious threats. The purpose of the virus definitions is to enable Avast to detect and protect against these threats effectively.

The Avast antivirus program regularly updates its virus definitions to stay up-to-date with the latest threats. These updates ensure that Avast can recognize and block newly emerging viruses and malware. By updating the virus definitions, Avast enhances its ability to provide real-time protection for users' systems.

Typically, Avast is designed to update the virus definitions automatically. When a user is connected to the Internet, Avast checks for updates to the virus definitions and installs them without requiring any user intervention. This process ensures that Avast users have the most recent and comprehensive protection against the latest threats.

In situations where an Internet connection is unavailable, users can manually download the virus definition updates from Avast's official website. This allows users to keep their antivirus protection current even without an active Internet connection.

It's important to note that updating the virus definitions does not require reinstalling the Avast antivirus program. Users can simply update the virus definitions to ensure their system's security without any additional steps.


Overall, the Avast Virus Definitions play a critical role in maintaining the effectiveness of Avast's antivirus software by providing up-to-date protection against viruses, malware, and other malicious threats.

Note: No reinstallation of the program is needed for virus database updates!

Also Available: Download Avast Free Antivirus

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