MMC detects error in a snap-in

I backed up the xml files so can put back if required, not going to worry over it.

@clam1952 - I copied the xml files into my downloads folder before deleting them, as the fix stated they should be "backed up". Can those copied xml files simply be copied back to the original folder after a fix is deployed? (Sorry I'm not as knowledgeable re tech stuff as others on this forum, and wasn't even sure copying them and saving them elsewhere was what was meant).

catspyjamas said:

Custom Views in Event Viewer was borked on my 3 HP laptops after yesterday Windows Updates (in spite of quite a few restarts), however it was fine on my Gigabyte laptop. I saw this issue raised somewhere else on tenforums with a link to a fix on ghacks. This fix worked for me (and has remained working in spite of shut downs and restarts). It's apparently happening to both 1809 and 1903 versions of Windows 10 after yesterdays patches.


Here ya go: Windows 10: Event Viewer error after installing KB4503293 and KB4503327 - gHacks Tech News

Hi cats, I followed the directions to a t on gHacks web page. Went to the folder, deleted all the views and restarted event viewer. It didn't work as all the pop ups reappeared. But I didn't give up and tried again at the directions given and lo and behold, the event viewer worked with no problems the second time. But I'm crossing my fingers. But great job at finding the link.

catspyjamas said:

@clam1952 - I copied the xml files into my downloads folder before deleting them, as the fix stated they should be "backed up". Can those copied xml files simply be copied back to the original folder after a fix is deployed? (Sorry I'm not as knowledgeable re tech stuff as others on this forum, and wasn't even sure copying them and saving them elsewhere was what was meant).

Probably can be copied back, If we get word that Microsoft is providing a fix in the next update, could always stick them back before updating. Incidentally on the PC that's not affected there are no xml files anyway, there were 7 on this PC.

Thanks @clam1952. Interesting observation re your unaffected machine. I just checked the folder in my gigabyte computer (which is the only one of four that didn't have the problem) and there are no xml files in there either. The other three had some custom views relating to devices (cameras from memory - I never really looked at those views).

Good morning,

It seems that some of you have fixed the "MMC has detected an error in a snap-in" by using the link shared by

catspyjamas. I would like to give this fix a shot too but I want to make sure I really understand the proper steps.

It is my understanding that I go to C Drive > Microsoft > Event Viewer > Views. Right now in the 'Views' folder I have four entries. First is a folder called 'ApplicationViewsRootNode' which is empty. Then I have three of the XML view documents: View 0, View 1 and View 2.

I intend to copy the three views listed into a folder I will make and call it 'Event Viewer MMC fix' before I delete the same three views in the original folder.

Now for the heart of my question: Do I copy the 'ApplicationViewsRootNode' folder currently listed in the 'Views' folder and move it into my new folder with the copied three XML views and then delete it in the original folder like I did the three XML views or keep my hands off of it?

Sorry for such a detailed question but I don't want to screw up my computer.

Thanks and regards,
2harts4ever

There's still a problem with event viewer. I replaced my c drive with an image from June 3rd using MR. I ran event viewer and everything worked fine. See the attached image below.

As you can see there are 6 items listed under custom views. I'm assuming that these 6 views correspond to the 6 views listed under c:\programdata/microsoft/eventviewer/views. See below.

I re-downloaded Microsoft updates from Tuesday the 11th and ran event viewer. I get the same errors. Now if I delete this 6 views and rerun event viewer, I don't get the error messages, but I only get 1 custom view. That would be administrative events. The other five are gone. So, there still seems to be a problem with event viewer or Microsoft has decided to eliminate the 5 views in question. Any thoughts?

KB4501375 fixed this for me.

I can see the custom views I had created once again.