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Antivirus v 21.3 Requirements

This Article Applies to:

  • Business Hub
  • Avast Business On-Premise Console

For Windows 7 (x64) and Windows Server 2008 R2 operating systems, Essential/Premium/Ultimate Business Security 21.3 and all future versions will require installation of the KB3033929 Windows security update. Windows 7 and Server 2008 R2 devices without this update will stay on the previous version until the OS security update is installed. Windows 10, Server 2012/2016/2019 do not require this update.

Attempting to install 21.3 on a device without this security update will end up installing the previous 21.2 version.

Using the offline installation package on a device missing this security update will cause an unsuccessful antivirus installation.