This Article Applies to:
- Avast Business Antivirus
- Small Office Protection
For Windows 7 (x64) and Windows Server 2008 R2 operating systems, Avast Business Antivirus 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.
Other Articles In This Section: