How to fix Windows 10 synchronization 0x8500201d error?

Question

Issue: How to fix Windows 10 synchronization 0x8500201d error?

Lately, Windows 10 stopped synchronizing with the email accounts. I tried managing the synchronization settings but no improvements so far. Any ideas on how to solve this problem?

Solved Answer

Windows 10 synchronization error 0x8500201d often occurs when attempting to synchronize Outlook.^[1] Users might encounter such a message which says that something went wrong and that the application fails to synchronize at that moment. This phenomenon might have caused by the recent Outlook update.

Additionally, some users, who installed Windows 10 Anniversary Update,^[2] might have run into such notification as well. Others reported that the integrated Mail, which manages your email account, started also to display 0x8500201d error. Therefore, you might have attempted to reset the settings.

Like many other similar problems, there are solutions to this one as well. If your efforts did not bring wanted results, take a look at our recommended methods. Windows 10 synchronization error 0x8500201d might be fixed by using the following techniques or you can try scanning the entire system for possible issues with reputable antimalware.^[3]

Windows 10 synchronization error "0x8500201d" problem can be fixed manually or automatically

How to fix Windows 10 synchronization error “0x8500201d”?

Option 1: Add your Outlook account again

In order to empower the synchronization, you might need to delete the added Outlook account and then add the same again. This option might also work on you encounter the same message in Mail.

1. Locate the mail program.
2. Enter Settings.
3. Click the Manage Accounts button.
4. Choose your account and delete it.
5. Open the mail application and add the account again.

Option 2. An alternative way to manage the account

There is also a bit different way to synchronize the account. The initial steps are the same.

1. Launch the app and navigate to Settings.
2. Later on, click on Add account. Type correct credentials and add the account. Manage your account properly to fix Windows 10 synchronization error "0x8500201d"
3. Launch the Mail app and choose Settings. Then, navigate to Manage Accounts and select your account. Click Disable Contact sync there. After completing these steps, exit the program and launch it again. The synchronization should work again.

Option 3. Troubleshoot the operating system

If the above-mentioned solutions did not help, it is likely that the problem lies not in the very applications. Errors in Microsoft servers might be the cause of this occurrence and synchronization failure. Besides using the integrated functions of troubleshooting, you can also check your system for possibly missing files with Reimage.

Option 4. Clean boot your computer system

If the previous methods were not found successful in the removal of error 0x8500201d, you can try the following instructing steps and perform a clean boot for your machine:

1. Go to the Windows Start menu.
2. Launch Search and type in “msconfig”.
3. Choose the option that says “System Configuration”.
4. Access the Services tab.
5. Select the checkbox near Hide all Microsoft services. Perform a clean boot to fix Windows 10 synchronization error "0x8500201d"
6. Afterward, go to Startup tab and open your Task Manager tool.
7. Enter the Startup tab in your Task Manager and click Disable for all items placed there.
8. Save changes in System Configuration by selecting OK.
9. After you finish these actions, restart your computer.

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