How To Fix Calendar On Windows 10. You can view and create calendar events right from the windows taskbar. Enable calendar sync on your windows pc.

I suggest you to run windows store apps troubleshooter and check if it fixes the issues. Here are some additional steps you can try:
We're Sorry You're Having Problems With The Mail And Calendar Apps For Windows 10.
Use the windows store apps troubleshooter.
Windows 10 Calendar App Not Working Properly.
Check synchronize with an internet time.
When Calendar Stops Syncing, Check If You Are Signed Into The Correct Outlook Account.
Images References :
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Since i wrote the original version of this story, iโve obtained direct advice from microsoft that itโs best to run dism.
So If You Want To.
Click on internet time tab.
Windows 10 Calendar App Not Working Properly.