[Fix] An unexpected error occurred in the WSUS snap-in

It was a typical day of experimentation and testing in my home lab. What I tried was to change the hostnames of some Windows Server 2016 VMs to check if and what problems arise. In general, everything seems to work just fine.

However, when I opened the WSUS console from the Windows 10 computer (which has the RSAT tools installed), I encountered the following error.

[Fix] An unexpected error occurred in the WSUS snap-in

An unexpected error occurred.
An unexpected error occurred in the WSUS snap-in. The snap-in will be unloaded.

Click the Unload WSUS snap-in button to allow the MMC to unload the snap-in. MMC will ask you if you would like to report this error to Microsoft.

Okay, and I just thought everything was going well.

Clicking on the Unload WSUS Snap-in button seems to go to load something but never completes. Even though I left it for a long time, it seems as though it’s stuck. However, the WSUS server continued to function properly. The problem was limited only in the snap-in.

If you google it, there are several solutions to this problem. However, in my case, it seems that the MMC snap-in was corrupted. So, what I did was the following.

I went to the %AppData% \ Microsoft \ MMC folder and deleted the wsus file.

[Fix] An unexpected error occurred in the WSUS snap-in

Then I just reopened the WSUS console from Server Manager, I connected to the WSUS server and it all worked fine now.

[Fix] An unexpected error occurred in the WSUS snap-in

I hope to save you some time if you encounter the same error in WSUS.

About Dimitris Tonias 143 Articles
My name is Dimitris Tonias, IT Pro, G(r)eek, focused on Server, Virtualization, and Cloud technologies.

1 Comment on [Fix] An unexpected error occurred in the WSUS snap-in

Leave a Reply

Your email address will not be published.


*