To remove the WSUS dependency left over by the Windows SBS Client Policy, you effectively need to tell the client computers to stop looking at a specific local server and start looking back at Microsoft's public servers.
Since Group Policy settings often "tattoo" the registry (meaning they stay even after the policy is deleted), the safest approach is a two-step process: disabling the policy and then cleaning the registry.
Step 1: Disable the Policy in Group Policy Management
If the SBS server is gone but you are on a new domain controller, or if the GPO still exists:
- Open Group Policy Management (
gpmc.msc).
- Locate the Windows SBS Client Policy.
- Do not just delete it yet. Right-click it and select Edit.
- Navigate to:
Computer Configuration > Policies > Administrative Templates > Windows Components > Windows Update.
- Find the setting Specify intranet Microsoft update service location.
- Set it to Disabled. This tells Windows to stop looking for an internal URL.
- Find Configure Automatic Updates and set it to Not Configured (or configure it to your new preference).
Step 2: Force the Clients to Reset
Even after changing the GPO, local machines might still have the old SBS server address stuck in their registry. You can run these commands via an Administrative Command Prompt on the affected machines (or via a startup script):
1. Clear the Registry Keys
These commands delete the specific entries that point to the old WSUS server:
reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate" /v WUServer /f
reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate" /v WUStatusServer /f
2. Reset the Update Service
This stops the service, clears the temporary update cache (which may be bloated with old SBS data), and restarts it:
net stop wuauserv
net stop bits
rd /s /q %windir%\SoftwareDistribution
net start wuauserv
net start bits
3. Force a Check-In
Finally, tell Windows to check directly with Microsoft:
wuauclt /detectnow
gpupdate /force
How to Verify
After performing these steps, go to Settings > Windows Update > Advanced Options.
- If you see a message saying "Some settings are managed by your organization," the old GPO or registry keys are still active.
- If that message is gone, and you can click "Check for updates" and successfully download files, the SBS/WSUS dependency is officially broken.
Tip: If you have many machines, the most efficient way is to create a new GPO called "WSUS Cleanup" that applies the "Disabled" setting to the "Specify intranet Microsoft update service location" and link it to the top of your domain.