How to assign computer dis-join domain into WSUS (using GPO asssign option)


I assigned domain computer to group for update packages from WSUS server by GPO, and they are running well.
For the other computer dis-join domain, How to apply them ? I type “wuauclt /resetauthorization /detectnow” on each one, but they have still not connected to WSUS yet.
Anyone can guide me how to solve the issue ?
Environment: WSUS Server 2012 R2; Clients: Windows 7,10, 2012 R2.

rafael hoNetwork/System EngineeringAsked:
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Fethi ABASSIWindows system administratorCommented:
rafael hoNetwork/System EngineeringAuthor Commented:

Follow up step register key: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate:
On windows 10, I did not see the object "Windows Update"

Must i new create it ?
Fethi ABASSIWindows system administratorCommented:
yes, you can add the entry
rafael hoNetwork/System EngineeringAuthor Commented:
I could control windows server 2012 by setting Local Policy.
For windows 10, I still could not control it by added entry.
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