Part 1: To join a domain, you have to make a registry change first:
- Plug in a Windows USB Keyboard to the Blue colored USB ports, press “Ctrl+Alt+Del”, and click Sign Out, Go to ZoomAdmin with Password “Zoom1234
- Go to Registry Editor, under
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Embedded\EmbeddedLogon
Change value from 1 to 0 for HideAutoLogonUI option will prevent the black screen from joining the domain.

Part 2: To join a computer to a domain
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On the Start screen, type Control Panel, and then press ENTER.
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Navigate to System and Security, and then click System.
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Under Computer name, domain, and workgroup settings, click Change settings.
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On the Computer Name tab, click Change.
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Under Member of, click Domain, type the name of the domain that you wish this computer to join, and then click OK.
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Click OK, and then restart the computer.
If you have additional questions or need to contact DTEN Support, please refer to this DTEN Knowledge Base article for more details: HERE.
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