calendar app not working windows

Windows updates are crucial for maintaining the security and functionality of your computer. Microsoft regularly releases Windows 11 updates with the latest bug fixes and security enhancements but occasionally, they can introduce unexpected issues as well. Once such issue you might experience the Calendar app not working on Windows 11. Users report, “Calendar does not pop up when I click on date and time” or the Calendar app crashes not opening. This article explores the reason why Calendar app not working after the Windows 11 update and solutions to fix the problem.

Calendar app not working on Windows 11

Corrupt system files are one of the primary reasons why Windows 11 apps not working include the calendar App. Outdated Windows versions, temporary app glitches or Conflicts with other software are also the reason why the Windows calendar app not working.

  • The calendar app has a technical problem
  • Critical system files required for the Calendar app to function might be corrupted,
  • Conflicts with other software, particularly third-party applications,
  • Outdated Windows version or Issues with Microsoft Store

And mostly repair corrupt Windows files using the system file checker (SFC) and DISM command fix the problem and restore the calendar app functionality. In addition, reset the calendar app on Windows 11 settings helps fix Calendar app not working on Windows.

  • For a few users, Clear Microsoft Store Cache using wsreset.exe command help fix the malfunctioning Mail and Calendar app.


Update calendar app

Using outdated versions of Windows 11 or calendar app might lead to compatibility issues that result app crashes or calendar App not opening. Let’s first check and Install the latest Windows updates and update the calendar app on Microsoft Store that might have bug fixes for the problem.

To update Windows 11

  • Press the windows key + x and select settings
  • Go to Windows Update and hit the Check for Updates button
  • Allow downlaod and install if new updates pending there.
  • And you need to restart Windows 11 to apply the changes.

windows 11 KB5030219 update

To update the calendar app

  • Open the Microsoft Store and Click on Library at the bottom left corner.
  • Click on Get updates, and downlaod if new updates are available for Mail and Calendar app.

Update Microsoft store apps

In addition, Restart your computer to ensure that any temporary glitches are cleared. This might resolve minor issues with the Calendar app.

Run Windows Store App Troubleshooter

Windows 11 comes with built-in app troubleshooting tools that can automatically detect and fix common problems that might be preventing calendar apps from functioning properly. Let’s run the Windows Store App Troubleshooter, and allow it to identify and automatically resolve any issues it finds.

  • Press the Windows key + I to open the settings app
  • Go to System then Troubleshoot and click on Other Troubleshooters
  • And finally, Click on Run next to Windows Store Apps.

This will check app permissions, cache, or settings that might be causing the app to not work correctly and try to resolve them automatically.

Windows store app troubleshooter

Let’s run the troubleshooter and fix any issues related to Windows Store apps, including the Calendar app. Once done, reboot Windows 11 and check

Reset the Calendar App

If the app is still misbehaving, you can try resetting it to its default settings and configuration. This can fix issues related to corrupted data or settings that might be causing the app to crash, not open, or behave unexpectedly.

  • Press Windows key + X and select installed apps
  • Scroll down to Locate Mail and Calendar, click on the three dots next to it, and select Advanced options

Mail and calendar advanced option

  • This will open a new window with options to repair or reset the calendar app on Windows 11.
  • Try the repair option first and check if this helps, if not click on the Reset option.

Reset Mail and calendar app

Restart Windows 11 and check if this help fix the calendar app problem.

Re-register the Calendar App

This is another effective ways to fix store app problems on Windows 11. If a reset doesn’t work, you can attempt to re-register the app using PowerShell.

  • Right-click on the Start button and select “Windows PowerShell (Admin).”
  • Type or copy-paste the following command and press enter key to execute.

Get-AppXPackage -AllUsers |Where-Object {$_.InstallLocation -like “*SystemApps*”} | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}

Re-register the Calendar App

This method solves issues that lead to inaccessibility and sudden application crashes.

Once done reboot the system to take effect the changes, now check if the calendar app working without any problem.

Repair Corrupted System Files

If for some reason, system files get corrupted or missing this can lead to problems with various applications include the calendar app on Windows 11. You can run the system file checker (SFC) and DISM commands to identify and fix corrupted system files.

  • Press Windows key + S, type cmd and select run as administrator,
  • First, run the DISM restore health command DISM /online /cleanup-image /restorehealth

DISM restore health command

  • Let it complete scanning 100%, next run the system file checker command sfc /scannow
  • The above common check error on Windows system image, scan for corrupt system files and try to fix them automatically.
  • Once the SFC scan is completed 100% restart the windows

Adjust calendar app settings

Sometimes misconfigured privacy settings of the Mail and Calendar app can cause such problems.

Open Windows 11 settings using Windows key + I. Go to Privacy & Security from the left sidebar, then Under the App permissions section, click on the Calendar option and Enable the toggle next to Mail and Calendar.

Let apps access calendar app

Again open settings and choose Accounts from the left sidebar and Choose the Email & Accounts option. Choose your account on the list, and select Manage. Select Change mailbox sync settings. Choose as items arrive in the Download new content drop-down menu. Turn on the Calendar option in the Sync options section.

Email calendar sync settings

Reinstall Mail and Calendar app

If none above solutions work for you, you should consider uninstalling the calendar app and install it fresh from the Microsoft Store.

  • Press Windows key + X and select Windows PowerShell (Admin)
  • Run the following command to uninstall the Mail and Calendar app on Windows 11.

Get-AppxPackage Microsoft.windowscommunicationsapps | Remove-AppxPackage

Uninstall calendar app

  • Reboot Windows 11, open the Microsoft Store, and download the Mail and Calendar app.

Download calendar app

Sometimes, User account corruption can lead to app malfunctions. Create a new user account and check if the Calendar app works under that account. If it does, the issue might be specific to your user profile.

Also, System restore allows you to revert your computer’s state to a previous point in time, which can be especially useful if the issues started occurring after a specific event, such as a software installation or update.

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Steve Ballmer
With over 7 years of experience in the IT industry, I have experience in IT support, helpdesk, sysadmin, network admin, and cloud computing. Certified in Microsoft Technologies (MCTS and MCSA) and also Cisco Certified Professional in Routing and Switching.