After installing the latest update, lots of users start reporting about the same error. What actually happening is: After installing the (KB4503293) and (KB4503327) Update, it breaks Event Viewer ‘Custom Views,’ meaning they can’t be viewed and Event Viewer crashes. When trying to access them, a quick dialog box opens up showing an error message which reads: After that, if you select “Unload the snap-in and continue running,” and click OK. Now another dialog box “Unhandled Exception in Managed code Snap-in” opens showing the following messages:

Fix – Windows 10 Commulative update break Event Viewer Custom Views

It is a very annoying issue. In case, you’re seeing the same error message, then fret not. Fortunately, there’s a quick workaround which you can use to fix the issue: Launch File Explorer in Windows 10 and navigate to following location: Here, simply delete the View_0.xml or View_other number.xml file. Now close everything and try to launch Event Viewer and check Custom Views. This you will not see any error message. Alternate fix – Some users also suggested that they were able to fix the issue by renaming the file in Views folder. In case, the above method fails to fix the problem; then you can also try this method. Update June 13/06/2019 – Microsoft offers a workaround to view Event Viewer Custom Views in Windows 10 1903 after KB4503293. You can visit the following support page for the solution: https://support.microsoft.com/en-in/help/4508640/event-viewer-may-close-or-you-may-receive-an-error-when-using-custom-v

Source – Deskmodder

Windows 10 1903 Cumulative Update Breaks Event Viewer  Resolved  - 93Windows 10 1903 Cumulative Update Breaks Event Viewer  Resolved  - 95Windows 10 1903 Cumulative Update Breaks Event Viewer  Resolved  - 59Windows 10 1903 Cumulative Update Breaks Event Viewer  Resolved  - 88