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In that case, you can delete the duplicate account by following this tutorial: 5 Ways to Delete A Local Account in Windows 10.
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If you are still seeing duplicate user accounts on the login screen, it is possible that you may have added the same account twice.
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How to Fix: Duplicate User Names on Windows 10 Login Screen To fix the issue “Duplicate user names on Windows 10 login screen”, you have to set up auto-login again or disable it. Hereis howto workaround thedoublelogin probleminWindows 10 untilMicrosoft releasesa permanentsolution. Windows 10 sign-in screen shows the same user account twice? This issue usually happens to users who have turned on automatic login feature in Windows 10, but changed the login password or computer name afterwards.
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