.NET 4 fails to install because SECUREREPAIR fails to CreateContentHash of file SetupResources.dll: for computing hash Error: 997

Question

I have trouble installing any .NET Framework on my Windows 7 x64 machine, I keep getting the following logfile, what might cause this?

OS Version = 6.1.7601,         


        

Answer 1

I still kept getting this error even after uninstalling KB2918614, etc., and what finally fixed it for me was to rename C:\ProgramData\Microsoft\Crypto\RSA\S-1-5-18 to C:\ProgramData\Microsoft\Crypto\RSA\S-1-5-18.bak for example. Only then when retrying the failing installation will it succeed! :)

The failing installation will recreate that folder.

I found this solution in the comments section of this blog post:

Gerd Hübner 4 Sep 2015 6:15 AM #

In short: Rename the folder C:\ProgramData\Microsoft\Crypto\RSA\S-1-5-18