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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.
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