GVC installation failing on Windows 11

Global VPN Client Installation do not work on Windows 11 devices. This document will help if there is microsoft related error.

Usually this Microsoft.VC90.CRT error occurs due to corruption in Windows installer or .Net framework.

First, need to make sure that there is no other VPN client installed on the system. Make sure that the Anti Virus program and windows Defender are disabled.

Also, use the GVC cleanup tool to remove everything related to GVC, restart and try again with different GVC versions, also few older versions.

Try with Admin credentials as well. Even after following these steps, if there is this message:

Then check the below link and make sure .net framework is also installed:

Unable to install any application Error: Microsoft.VC90.CRT. version= - Microsoft Community

Microsoft has this mentioned in their own forums. This is a non SonicWall issue.

To get the cleanup tool:

Where to find Global VPN Client (GVC) Cleaner Tools | SonicWall