In this article we are going to look into a few troubleshooting steps to resolve error message 0x8500201d on Windows 10.

Fix Mail app sync error 0x8500201d on Windows 10

Solution 1 – Re-enable Mail syncing.

The first troubleshooting solution you need to try in order to resolve mail app synchronization error 0x8500201d on Windows 10 is disabling and then re-enabling the mail syncing process. Simply follow these steps:

  1. Open Mail app. Go to Accounts, and select the account that’s giving you the problem.

  2. On the Account settings window click on “Change mailbox sync settings”.

  3. Change the Syncing option to OFF.

  4. Close and restart the Mail app.

  5. Go to Accounts, and select the same account and click on “Change mailbox sync settings” on the Account settings window.

  6. Change the Syncing options to ON. Restart the Mail app, and hopefully error 0x8500201d will have been resolved. If not, try the next step.

Solution 2 – Perform a clean boot

Performing a clean boot can be useful in identifying the cause behind error code 0x8500201d. Usually, the problem stems from some third part application, or startup processes. Disabling all start up processes and then re-enabling them one at a time can help pin point the source of the error. Follow these steps:

  1. Click on Start, and in the search bar, type “msconfig”

  2. From the search results, select “System Configuration”.

  3. Open the Services tab.

  4. Check the “Hide all Microsoft services” check box. Next click the “Disable all” button.

  5. Next, open the Startup tab. Click the “Open Task Manager” button. Alternatively press Ctrl + Shift + Esc keys.

  6. Open the Startup tab in Task Manager. Right-click on all start-up items and click on “Disable” to disable them.

  7. Close Task Manager.

  8. Click the OK button on the Startup tab of the System Configuration window, to save the changes. Once the process is complete, restart the computer. See if the error persists. If not, start each application/services one at a time. As soon as the problem reappears, you will have identified the culprit. SPONSORED If this doesn’t work for you, you can try the next solution.

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Solution 3 – Remove & re-add your account

Sometimes, removing and re-adding your account can do the trick. Follow these steps:

  1. Open Mail app. Go to Accounts, and select the account that’s giving you the problem.

  2. On the Account settings window click on “Delete account”.

  3. Close & restart the mail app.

  4. Click on Settings from the bottom left corner of the screen.

  5. Choose Accounts, and then add account.

  6. Enter your email account credentials and add the account.

  7. Close and restart the Mail app again. Go to Accounts, and select the new account.

  8. On the Account settings window click on “Change mailbox sync settings”.

  9. Disable contacts sync. Hopefully this will resolve Mail error 0x8500201d. If not try the next step.

READ ALSO: Fix: can’t sync AOL e-mail with Windows 10 Mail app

Solution 4 – Remove your account

The last thing you can try is to do the same thing as in steps 1 & 2 of Solution 3. Just don’t add the same account again. Add a different account.

  1. Open Mail app. Go to Accounts, and select the account that’s giving you the problem.

  2. On the Account settings window click on “Delete account”.

  3. Enter new email account credentials and add the new account.

  4. Close and restart the Mail app again. Hopefully one of these solutions worked for you. If not, try contacting Microsoft Support. RELATED STORIES YOU NEED TO CHECK OUT:

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