“MMC could not create the snap-in”.
MMC could not create the snap-in. The snap-in might not have been installed correctly.
Name: Server Manger
c:\Windows\Microsoft.NET\Framework\v3.5\WFServicesReg.exe /r /b
After running the command enable the feature .net framework 3.0 under Add features in Server Manager.
If these steps do not alleviate the issue, carry out the following steps to replace the Machine.config file with a known good version:
1. Navigate to C:\Windows\Microsoft.NET\Framework64\v2.0.50727\CONFIG
2. Rename Machine.config to Machine.config.old
3. Copy Machine.config from a known good server.
The command removes the entries added in the machine.config during Framework updates.