How to Fix Calendar App Not Working on Windows (7 Solutions)


Staying organized is key to maintaining a productive lifestyle. Isn’t it? For many Windows users, the Calendar app plays a vital role in managing daily schedules, important events, and reminders. However, encountering issues with the Calendar app can quickly throw a wrench into your well-planned routine.

If you’ve found yourself in a situation where the Calendar app on your Windows system is not working as expected, don’t panic just yet. There are several common reasons why the Calendar app might be acting up, ranging from minor glitches to more complex technical problems. The good news is that, in most cases, you can resolve these issues on your own without the need for extensive technical knowledge.

In this troubleshooting guide, we will walk you through some effective methods to fix the Calendar app not working issue on Windows. 

Calendar App Not Working on Windows 11/10? Try These Fixes!

Calendar App Not Working on Windows

So, regardless of the specific Windows edition you’re using, there’s a good chance you’ll find the solutions outlined here applicable to your situation.

Solution 1: Update the Calendar App

If you’re having trouble with the Calendar app on your Windows system, the first thing we should try is updating the app to see if that resolves the issues. Here’s how:

  1. Open the Microsoft Store app. 
  2. Click on the library icon from the left menu pane. 
Update the Calendar App
  1. Hit on the “Get updates” to check for updates.
Update the Calendar App now
  1. If there’s an update available for the Mail and Calendar app, click “Update.”

Once the update is complete, restart your computer and give the Calendar app another try. Hopefully, this update will fix any glitches and get everything back on track.

Solution 2: Reset the Calendar App

If updating the Calendar app didn’t do the trick, don’t fret! Another effective step you can take is resetting the app. Resetting the Calendar app can help clear any underlying issues or corrupted settings that may be causing it to malfunction.

Here’s how you can reset the Calendar app on Windows:

  1. Open the “Settings” app on your Windows system.
  2. In the Settings window, click on “Apps” and the “Installed Apps”.
Reset the Calendar App
  1. On the Apps page, scroll down and locate the “Calendar” app. You can either browse through the list or use the search bar to find it more quickly.
Reset and fix the Calendar App not working issue
  1. Once you’ve found the Calendar app, tap on the three-dot icon placed next to it and select “Advanced Options”. 
  2. On the next screen, you will see a “Reset” button. 
Advanced option in calendar app
  1. Click on it to reset the Calendar app.

Windows will now reset the Calendar app, which may take a few moments. After the reset is complete, close the Settings app and try launching the Calendar app again. Hopefully, this reset will resolve any lingering issues and get the app back to its normal functioning state.

Solution 3: Uninstall Recent Windows Updates

If you’re still experiencing the calendar app not working issue, it’s worth considering whether recent Windows updates might be the culprit. Sometimes, certain updates can introduce compatibility problems or conflicts with specific apps. In such cases, uninstalling the recent updates may help resolve the issue.

NOTE: Uninstalling updates is an advanced troubleshooting step and should be done with caution. It’s recommended to create a system restore point or backup your important files before proceeding.

Here’s how you can uninstall recent Windows updates:

  1. Open the “Settings” app and switch to the  “Windows Update” section from the left menu pane.
  2. Click on the “Update History” link.
Uninstall recent Windows update to fix calendar app
  1. You will see a list of recent updates installed on your system. Scroll down at the bottom of the page and tap on “Uninstall Updates”. 
Windows update unisntall
  1. Pick the most recent update from the list and then hit the “Uninstall” button placed next to it. 
uninstall recent Windows update

Windows will guide you through the uninstallation process. Follow the on-screen instructions and restart your computer if prompted.

After uninstalling the updates, check if the Calendar app is functioning properly. If the issue persists, you can always reinstall the updates later.

Solution 4: Use the System Restore Feature

If the Calendar app on your Windows system is still misbehaving, you can try using the System Restore feature. Here’s how you can fix the calendar app not working issue. 

  1. Search for “System Restore” and open the “Create a restore point” option.
Use the system restore point to fix Calendar app not working issue
  1. Click on “System Restore” and follow the prompts.
System properties Windows
  1. Select a restore point from before the Calendar app started having issues.
  2. Confirm the restore process and let your computer restart.

After the restoration is complete, check if the Calendar app is working properly.

Using System Restore can revert your system to a previous state when the Calendar app was functioning correctly.

Solution 5: Open Calendar Using the Mail App

If you’re still facing the calendar app not working Windows 10/11 issue, an alternative approach you can try is accessing the calendar through the Mail app. The Mail app provides integrated access to your email and calendar, and it might help you bypass any issues specifically related to the standalone Calendar app.

Here’s how you can open the Calendar using the Mail app:

  1. Open the Mail app on your Windows system. You can find it by clicking on the “Start” button and searching for “Mail.”
  2. Once the Mail app is open, look for a small calendar icon located at the bottom-left corner of the window. It typically appears next to the “Folders” section.
Open Calendar Using the Mail App
  1. Click on the calendar icon, and it will switch the Mail app’s view to Calendar mode.
  2. Now, you should be able to view and manage your calendar events and appointments directly within the Mail app’s Calendar mode.

By accessing the Calendar through the Mail app, you can still maintain functionality and control over your schedule, even if the standalone Calendar app is not cooperating.

Solution 6: Check Date and Time Settings

Check Date and Time Settings

Make sure that your computer’s date and time settings are accurate. Incorrect date and time settings can sometimes cause issues with the Calendar app. Right-click on the date and time in the taskbar, select “Adjust date/time,” and ensure that the settings are correct.

Solution 7: Disable Third-Party Antivirus or Firewall

Sometimes, third-party antivirus or firewall software can interfere with the proper functioning of the Calendar app. Temporarily disable your antivirus or firewall software and check if the Calendar app starts working. If it does, you may need to adjust the settings of your security software to allow the Calendar app to function.


In conclusion, troubleshooting issues with the Calendar app on Windows can be a frustrating experience, but with the right steps, you can regain control of your schedule and fix the calendar app not working Windows 10/11 issue within no time. 

Whether it’s updating the app, resetting it, or exploring alternative access methods, these solutions can help resolve common problems. Remember, each system may have unique factors contributing to the issue, so don’t hesitate to seek further assistance if needed. Keep your calendar running smoothly and stay organized!

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