Emails are an essential medium of business communication in the corporate world. They are fast, cheap, accessible, and allow users to transmit various files and documents. Windows 10 operating system offers its users a special email application that helps stay updated about the latest email messages received in the inbox. However, it would be a real disaster to know if your Windows 10 Mail app is not working properly.

Of course, you can always open it using a web browser, but that would mean giving up the luxury of opening your emails in lieu of just one click. Moreover, there’s a risk of losing out on vital emails until you discover that the Windows Mail app has crashed. Missing out on time-sensitive email communication can also have far-reaching consequences. Also, the issues with app like Photos app missing are quite common in Windows 10.

How To Fix Windows 10 Mail App Not Working Issue

If you face the Windows 10 mail app problem, there are a string of solutions to apply and fix the issue. There are many reasons you might face this issue, which is why there are multiple solutions. Let’s have a glance at these methods and fix the problem in no time.

1. Check Calendar Privacy Settings

The reason why we need to check the Privacy settings is that we need to know if the Calendar app has been granted access by Microsoft. To begin with, open the Settings app using the Win key + I keyboard shortcut. You can also open it using the Start menu search box.

Then, select Privacy from the available options.

Open Settings and select Privacy

Select Calendar in the left pane and switch on ‘Allow apps to access your calendar.’ Restart your device after you make this change and check if the Windows Mail app has started working.

Switch on Allow apps to access your Calendar

Users facing the email app issue need to check these settings because the Calendar app is connected to the Windows Mail app. So, if the former doesn’t have Microsoft access, the latter is bound to get affected. 

2. Ensure Email Sync Setting Is On

If the privacy settings are correct and your Windows 10 mail app is not working, try setting a secure internet connection for your mailbox.

Open the Windows Mail app from the taskbar and click on the gear icon to open application settings.

Open the Settings

Select Manage accounts from the given list of options. Then, select your email account in the next window. 

Select Manage Accounts

Click on ‘Change mailbox sync settings.’

Change mailbox settings

Make sure the Email option under Sync options is switched on. If you have made any changes to the mailbox settings, click on Done to save them.

Select Email

To see if you are being notified about incoming emails on your email account, send an email to yourself using any internet browser and check if the Mail app works properly.

3. Update the Mail App

If your Mail app is outdated, it might experience issues with syncing. Make sure you update the application and see if the emails start syncing correctly.

To update the Mail app, open the Microsoft Store and click on the Home tab. Next, click on the three horizontal dots in the top right corner and select Downloads and updates.

Select Downloads and updates

Then, select Installed in the left pane and click on the three horizontal dots next to Mail and Calendar. 

Update Mail and Calendar

You can update the app if an update is available. After the update is completed, check if the Mail app starts syncing correctly.

4. Close the Sync Settings

If the Windows 10 Mail app is not working properly, you can switch off the sync settings to see if that fixes the issue.

To begin with, open Settings and click on the Accounts option.

Select Accounts

Then, select Sync your settings in the left pane and turn off Sync settings in the right pane.

Turn off sync settings

Restart the device once and check if the Mail has started working correctly.

5. Install Windows Updates 

An outdated Windows OS can cause many issues to various applications, one of which is the Mail app. If your Windows 10 Mail app is not syncing, update your OS if any Windows update is available.

Open the Settings app and click on Update & Security.

Click on Update & Security

Then, select Check for updates; if any update is available, the OS will download and install it. 

Click on Check for updates

Restart your device and check if the Mail app has started working.

6. Tweak the Localization Settings

Localization settings determine the geographical location, time, currency, language, and many other parameters. If your Windows 10 Mail app is not working as expected, you can change the system locale and check if that resolves the issue. 

To begin with, open the Settings from the Start menu. Select Time & Language from the available options. 

Select Time & Language

Select the Region tab and set the Home location to your country in the right pane. 

Select your Country

Next, select the Administrative tab and click on the Change system locale button. 

Select Change system locale

Set the Current system locale to your country and click on OK to save the changes. 

Select your country and click OK

Then, click on OK in the Region tab to save the changed settings.

Click on OK

Check if the Mail app has started working after you execute these steps.

7. Turn Off the Location Settings for Mail and Calendar App

Location services often cause the Mail app to stop functioning smoothly. If that’s the case, you can disable the location settings for the Mail and Calendar app.

Open Settings using the Win key + I shortcut or from the Start menu search box. Select Privacy settings from the list of available options. Select Location in the left pane menu and switch off the button next to Mail and Calendar. Alternatively, you can switch off the entire Location service. 

Switch off location

Once you have carried out these steps, check if the Windows 10 Mail app has started functioning properly.

8. Reset the Mail App

If the previous solutions haven’t yielded any positive results, you can consider resetting the Mail app. Resetting any application deletes the data related to it and resolves the Windows 10 Mail app not working issue.

To begin with, open Settings and select the Apps option.

Click on Apps

Next, you will see a list of all the installed apps on your computer. Select Mail and Calendar from the list and click on Advanced options.

Click on Advanced options

Now, click the Reset button to start the process. A confirmation window will appear before starting the process; click on Restart again to initiate the process.

Click Reset

If resetting the application hasn’t solved the Windows 10 Mail app not working issue, you can try consulting a computer expert regarding the same.

9. Reset Microsoft Store Cache

The cache is a remote storage location that collects temporary data of browsers and websites to improve their loading speed. You can try resetting the Microsoft Store cache if the Windows 10 Mail app is not working.

Type cmd in the Cortana search box and click on Run as administrator to open the Command Prompt with administrative rights.

Open Command Prompt

Then, type the following command and press the Enter key.

Run the command

This solution might not work for every person, but it’s worth a try. Try using the Mail app and see if it works.

10. Perform SFC Scan

A System File Checker scan is used to identify the corrupt system files in a computer and replace them with new versions. You need to open the Command Prompt with administrative rights to perform the SFC scan. Follow the brief guide on how to perform the SFC scan and replace the damaged system files and resolve the Mail app sync issues.

11. Perform DISM Scan

The DISM scan, also known as Deployment Image Servicing & Management scan, is used to repair damaged system files. To perform this scan, you need to open the Command Prompt in administrator mode.

Then, enter the following command and press Enter key.

Dism /Online /Cleanup-image /RestoreHealth
Run the DISM command

After the DISM scan is completed, check if the Windows 10 email problem still exists.

12. Use PowerShell 

Windows PowerShell is a configuration management framework consisting of a command-line shell and scripting language. However, users must be aware that the Windows PowerShell command must be executed carefully since it can damage the system if performed in the wrong manner.

If your Windows 10 Mail app is not working, open the PowerShell in administrator mode.

Now, enter the following command and press the Enter key.

Get-AppXPackage -AllUsers |Where-Object {$_.InstallLocation -like "*SystemApps*"} | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"}
Run the command

The Mail application should start working after executing this step. If the sync issues aren’t resolved, you can try another solution.

13. Reinstall the Mail Application

If the PowerShell command doesn’t work as expected, you can reinstall the Mail app using this framework.

Log in as the administrator in PowerShell and run the following command.

get-appxpackage *microsoft.windowscommunicationsapps* | remove-appxpackage
Run the command

The Mail app will be reinstalled after this step. If you don’t wish to use PowerShell, you can go for a cleaner app like CCleaner or any other alternative.

Once the Mail app is uninstalled, you need to install it from the Microsoft Store.

Open the Store from the Cortana search box. Then, enter Mail and click on Mail and Calendar. Click on the Install option to reinstall the app and see if it works as expected.

14. Turn Off Two-Factor Authentication

The two-factor authentication feature adds to the security of your emails and private content. However, the Mail and Calendar app doesn’t support this feature. You can either turn it off or create an app password for the user account that uses this feature. You can check the process of creating an app password with your email provider.

15. Create a new User Account

If the Windows 10 Mail app problem isn’t resolved after following the previous methods, you can try creating a new user account and accessing the email through it.

However, you have to switch from Microsoft to a local account. To do that, open Settings from the Start menu search box and select Accounts.

Then, click on Sign in with a local account instead. 

Click on Sign in with a local account instead

Enter your account username and password and click on Next. 

Enter password and click OK

Now, enter your desired username and password to switch to a local account. Then, click on Next and complete the remaining process. 

Enter username and password

Now, you can create a new Microsoft account. To begin with, open the Settings application and select Accounts.

Select Family & other people in the left pane and click on ‘Add someone else to this PC.’

Select Add someone else to this PC

Then, click on ‘I don’t have this person’s sign-in information.’

Select I don’t have this person’s sign-in information

Now, select ‘Add a user without a Microsoft account.’

Select Add a user without a Microsoft account

Enter your user name and password in the required fields and click Next. 

Enter your credentials and click on Next

After a new account is created, switch to that account and check if the Mail app sync issues are resolved.

16. Use Store Apps Troubleshooter

If your Windows 10 Mail app is not working, you can use the Store Apps troubleshooter to resolve the issue. The troubleshooter will fix any problem that exists within the Mail application. You can download the troubleshooter from this website.

To run the troubleshooter, open Windows Settings using the Win key + I keyboard shortcut. Then, select Update & Security from the list. Select Troubleshoot in the left pane and click on Windows Store apps. Then, select Run the Troubleshooter.

Select Run the troubleshooter

Once the troubleshooting ends, you can see the possible errors that might have blocked the Mail application. You need to resolve these errors, if any, and check if the Mail app issue has been rectified.

17. Perform an In-place Upgrade

You can perform an in-place upgrade if the Windows 10 Mail app is not syncing. However, once you start this upgrade, make sure you don’t interrupt it.

To begin with, download the Windows 10 ISO file. Double-click on the ISO file and mount it.

Now, go to This PC and open the ISO file. Locate setup.exe and double-click on it to start the setup.

Now, follow the instructions on the screen. 

Once you get to the ‘Ready to install’ screen, users need to select the ‘Change what to keep’ option.

Then, choose the ‘Keep personal files and apps’ option and click on Next. After this step, the update process will commence. Once the update is complete, try using the Mail application to check if it is working.

The in-place upgrade can also be performed using the Media Creation Tool as well.

18. Update the Drivers

Outdated drivers can serve as an impediment many times and cause oodles of issues in the Windows 10 OS. It is necessary to update all drivers if you wish to avoid any sort of hurdle while operating a computer. Here’s a quick guide on how to update your Windows 10 drivers and ensure the smooth running of a PC.

19. Perform System Restore

The System Restore is used to roll back the computer and restore old settings at a previous point in time. You can do a system restore, especially when you change multiple settings and don’t understand which tweak is causing issues with the functioning of the OS. If your Windows 10 Mail app is not working, you can perform the system restore to identify the root cause of the problem and take necessary action regarding the same.

20. Turn Off Windows Defender 

As its name suggests, Windows Security is a built-in tool that keeps the viruses and malware in check on a PC. However, when you turn it on, it can also interfere with some software and tools. 

If your Windows 10 Mail app is not working and the problem isn’t solved yet, open Windows Security center from the Start menu. 

Then, click on Firewall and network protection.

Select Firewall & network protection

Now, choose a network profile and turn off the Windows Firewall for it. You need to repeat this step for every profile. 

Turn off firewall for all network profiles

If your Mail application starts syncing properly after following these steps, you need to permit the Mail and Calendar application to pass through the firewall.

To begin with, click on Fire and network protection in the Windows Security window.

Then, choose Allow an app through firewall settings.

Select Allow an app through firewall

Next, click on Change settings. 

Select Change settings

Select Mail and Calendar from the list of apps; further, check the boxes in the Private and Public columns.

Check Private and Public networks

Check if the Windows Mail application starts syncing properly after doing these steps.

21. Turn Off Third-Party Antivirus Software

If your Windows 10 Mail app is not syncing even after turning off Windows Security, disable the third-party antivirus tool if you have one on your computer. You don’t need to turn off the antivirus tool forever, but doing this step will help you identify if the software is interfering with the syncing of emails or calendar events. To block any sort of virus or malware from entering your PC, make sure you don’t open any unwanted emails or emails from unknown people.

22. Change the Owner of the windows/communications/apps Directory

The windows/communications/apps directory is used to store excess data on your PC. It is also used to keep browser history and passwords. 

Step 1: To change the ownership of this directory, navigate to the following path.

C:\\Program Files

Search for WindowsApps directory. If you don’t find it, click on View and select Hidden files.

Then, locate the directory, right-click on it, and select Properties.

Open WindowsApps properties

Step 2: Next, click on the Security tab and choose Advanced.

Choose the Security tab and click on Advanced

Step 3: Then, click on Change in the owner section.

Click on Change 

Step 4: Enter your computer name in the ‘Enter the object name to select’ field.

Click the Check Names button. Then, click on OK to save the settings.

Click on Check Names

Step 5: Now, go back to the WindowsApps directory and locate microsoft.windowscommunicationsapps directory. 

Step 6: Right-click on it and select Properties from the menu.

Step 7: Now, change the owner as we discussed in steps 1 to 3 above.

Step 8: While changing the owner, check the ‘Replace owner on sub containers and objects’ and select Apply and OK.

Step 9: Next, go back to the Advanced options and select Change permissions.

Step 10: Search for Users on the given list and double-click it. Then, click on Apply and OK to save the changes. 

Now, you need to repeat these steps and change the owner for every microsoft.windowscommunicationsapps directories you find on your PC.

Since this is a complex solution, make sure you try it out last after executing all the other methods if your Windows 10 Mail app is not working.


The Mail app in Windows 10 is one of the most vital applications that allow users to access their emails in the blink of an eye. Hence, if this app has crashed on your PC, make sure you fix this issue as soon as possible. There’s a stark possibility of missing out on crucial emails if you are unaware that the application has crashed.

These solutions can help you to resolve the Windows 10 email problem. If the Windows 10 Mail app is not working, try these methods on a trial-and-error basis to check which one works the best for you. If none of them resolve the Windows 10 Mail app not working issue, the next best step would be to consult a computer expert regarding the same.