Sorry, I do not know the answer - can only say that I have suffered from an identical problem with the same Event Viewer entries for the last 18 months - PLUS - since updates in the last few days, KB5033920 & KB5034123 (after 22H2 update), computer, especially YouTube, running very jerkily and...
HOW TO FIX - open Microsoft Store / on left Click Library - a list will show of the apps on your computer/ top right Click on Get Updates - wait a bit and hopefully from today Mail and Calendar will show an update of 38.47Mb - let this download and install.
After this you should be able to open...
HOW TO FIX - open Microsoft Store / on left Click Library - a list will show of the apps on your computer/ top right Click on Get Updates - wait a bit and hopefully from today Mail and Calendar will show an update of 38.47Mb - let this download and install.
After this you should be able to open...
ALL FIXED - just gone, once again to Microsoft Store/ Clicked on Library/ Clicked on Get Updates and a new 38.47Mb Update for Mail and Calendar appeared - after installation Calendar now opening OK. There appears to have been a major appearance change.
Sorry - ignore my comment above - my two calendars are attached to two different email addresses. I have now done the same as you - gone to Outlook.com / signed in to my 'personal' email/ clicked on Calendar and, like you, it opened with all the data still there - in spite of 'repairing' and...
Surely you may be a bit confused? For me, my Outlook Calendar is separate to my Windows Calendar - one I use for 'work' and the other for 'personal' events.
In my case it is a very recent Mail & Calendar app update that, I believe, started the problem of Calendar opening.
I cannot seem to find in Microsoft Store a way to uninstall or roll back an app update. Anyone know how to ?? (PS I do know how to uninstall a Windows Update)
This problem appears to have been caused by a very recent update of the Mail and Calendar app.
For some giving the app a 'Reset' cures the problem - for others this does not work.
I did not dare trying the 'Reset' as I believe this would cause a total loss of all my past, present & furture calendar events. Am I correct ?
I'm glad I started this Thread as in the past when problems like this have happened, I've often plunged in changing everything to try and achieve a fix...
Today, March 1st 2023, the Calendar app (part of Mail & Calendar app) will not open - just a blank white screen.
Following internet advice, I tried 'Repair' the app - no good.
I then noticed the app has been updated today - coincidence ??
Mail app opening OK, but whether I try to open Calendar...