What if the Win10 mail application cannot be synchronized?

  
1. First, return to the traditional desktop location of the Win10 system. After that, open the Start menu of the Win10 system, then use the search function in the Start menu, enter Powershell in it, and find the Powershell option in the search results that appear in the Start menu. Right click and click Run as administrator in the slide down menu.
2. After that, you can open the command prompt window of Win10 system. In the open command prompt window, enter the following command:
Get-appxprovisionedpackage –online
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