Having an issue with the built-in Calendar app in Windows 10? In this guide, we will see how to reset and reinstall the Calendar app in Windows 10.
If the Calendar app is not opening or having some issues, you should first reset the app. Resetting the app will most likely fix the issue. But if the issue persists even after resetting the app, you should try reinstalling the app.
In short, try resetting the app first. If that doesn’t help, reinstall the app.
Method 1
Reset the Calendar app in Windows 10
Resetting the Calendar app will automatically reset the Mail app as well. You will lose all data saved in Mail and Calendar app on this device, including sign-in details.
Step 1: Open the Settings app. Navigate to Apps > Apps & features.
Step 2: Locate the Mail and Calendar entry. Click on the entry to see Advanced options link. Click on it.
Step 3: On the Storage usage and app reset page, click the Reset button. When you see the confirmation dialog, click the Reset button again to reset the Mail and Calendar.
Launch the Calendar app now.
Method 2
Reinstall the Calendar app in Windows 10
Important: Reinstalling the Calendar app will also reinstall the Mail app. After reinstalling the app, you will have to sign-in to your account(s) again.
Step 1: Open the PowerShell with admin rights. To do that, right-click on the Start button on the taskbar and then click Windows PowerShell (Admin) option. Alternatively, you can type PowerShell in the Start/taskbar search field and then simultaneously press Ctrl + Shift + Enter keys.
When you see the User Account Control screen, click the Yes button.
Step 2: At the PowerShell window, type the following command and then press Enter key to uninstall the Mail and Calendar app.
Get-AppxPackage *windowscommunicationsapps* | Remove-AppxPackage
NOTE: If you are unable to uninstall using this method, follow the directions in Method 3 of this guide (scroll down the page to see).
Step 3: Try searching for Calendar app in the Start/taskbar now. If uninstalled successfully, you will not see Mail and Calendar app.
Step 4: Now that you have successfully uninstalled the Mail and Calendar app, it’s time to install a fresh copy of the same from Windows Store.
Click on this Mail and Calendar link to automatically open the Mail and Calendar page in the Store app. Click the Get button to install the same. That’s it!
You might need to sign-in to your account(s) again.
Method 3
Reinstall the Calendar app using CCleaner
If you are not able to uninstall the Calendar app via PowerShell, you can use third-party tools to uninstall the Calendar app and then install the same from the Store. In this guide, we will use the free version of CCleaner to uninstall the Calendar app.
Step 1: Download CCleaner and install the same on your PC. As said before, the free version of CCleaner is good enough for this job.
Step 2: Launch the CCleaner program. Navigate to Tools > Uninstall.
Step 3: Look for Mail and Calendar app entry. Right-click on the entry and then click Uninstall option. When you get the warning dialog, click OK button to uninstall Mail and Calendar.
Step 4: Close the Store app if it’s running. Visit this link of Mail and Calendar and click the Get button to install the same. Congregations! You just reinstalled the Calendar app.
Hope you managed to resolve Calendar issues with this guide!