Event Viewer MMC error

MMC has detected an error in the snap-in & will unload it. I tried looking for solutions but none of them worked.

I ran SFC, deleted the registery key, and nothing. Also says Unhandled exception in Managed code snap-in system. IO.IO exception. Any help guys?

Yes I have framework 3.5.1 installed and no that FIX didn't work. I did read that with the new windows 1903 there is an issue with the event viewer and their working on a fix.

bro67 said:

Is .net framework 3.5.1 installed (see Programs and Features, Turn Windows Features On/Off and look for Microsoft .NET FRAMEWORK 3.5.1 and make sure that the box is checked)? Also see [FIX] MMC Has Detected An Error In A Snap-in And Will Unload It

I did the 2nd option and the error is gone, thanks

bro67 said:

See this for the workaround. Windows 10: Event Viewer error after installing KB4503293 and KB4503327 - gHacks Tech News