WSUS -- deleting the wsus file under %appdata%\Microsoft\MMC\.

This error is probably due to the WWW Publishing service being configured to allow interaction with the desktop. To solve this problem, take the following steps:

1. Open the Services snap-in (click Start, click Run, and then type services.msc).

2. Right-click the World Wide Web Publishing service and select Properties.

3. On the LogOn tab, clear the Allow service to interact with desktop check box.

4. Click OK, and then dismiss the Services snap-in.

5. rom a command shell, type iisreset.

At this point you should be able to access the WSUS server from the console again.

Source

#Verify that the Update Services service, IIS and SQL are running on the server. If the problem persists, try restarting IIS, SQL, and the Update Services Service.