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ERROR: Error 1935.An error occurred during the installation of assembly

Level 6


We are unable to install NBU7.7.3 client on win2008R2 server. The installation fails with below error.

+ 09-28-2016,08:06:55 : ERROR: Error 1935.An error occurred during the installation of assembly 'policy.9.0.Microsoft.VC90.CRT,type="win32-policy",version="9.0.30729.6161",publicKeyToken="1fc8b3b9a1e18e3b",processorArchitecture="amd64"'. Please refer to Help and Support for more information.
+ 09-28-2016,08:06:55 : Action ended 8:06:55: InstallExecute. Return value 3.

I found there were some left overs from NBU client 7.5 and Backup Exec remote agent on the same system. So I manually properly uninstalled both and rebooted the server. Just for testing we tried installing 7.1 client and it got installed successfully however when I am trying to upgrade it to 7.7.3 client it gives same error.

Checked our article and it suggests to follow MS KB article.;EN-US;946414

However it does not contain any steps looks like article is no more available. Plus there are no registry entries on the server.

This problem may occur if any of the following values exist in the Windows registry:


I tried running the setup of vcredist_x64.exe and it gets installed successfully but nbu client 7.7.3 still fails.

Can anyone suggest how to get the client installed


Thank you


Level 5


It looks like you need uninstall NBU with this procedure and then try installing

Hope it helps.