How to update Windows behind policies (via registry)

Question

How to update windows behind restrictives policies (who is handled by WSUS administrator) ? Is it possible to do via registry (regedit) ?

Answer 1

Yes it s possible to update if you are administrator of your machine. Create and execute (as Administator) the file wsus.reg with the following code :

Note : The following script set the registries to allow your machine to update windows with the updates from the official Microsoft update server.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate]
"DisableOSUpgrade"=dword:00000000
"ElevateNonAdmins"=dword:00000001
"TargetGroupEnabled"=dword:00000000
"TargetGroup"=""
"WUServer"=""
"WUStatusServer"=""


[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"NoWindowsUpdate"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU]
"AUOptions"=dword:00000002
"AutoInstallMinorUpdates"=dword:00000000
"DetectionFrequencyEnabled"=dword:00000001
"DetectionFrequency"=dword:00000008
"NoAutoRebootWithLoggedOnUsers"=dword:00000001
"NoAutoUpdate"=dword:00000000
"NoAUAsDefaultShutdownOption"=dword:00000000
"NoAUShutdownOption"=dword:00000000
"ScheduledInstallDay"=dword:00000007
"ScheduledInstallTime"=dword:00000014
"RebootRelaunchTimeoutEnabled"=dword:00000001
"RebootRelaunchTimeout"=dword:000000f0
"RescheduleWaitTimeEnabled"=dword:00000000
"UseWUServer"=dword:00000000

Then restart your machine and go to Windows Update Settings and check for updates.

Et voilà :)

Edit: You can have an explanation for each registry on the Microsoft documentation website