I have this one laptop that doesn't appear in WSUS all computers list. We have about 23-25 PCs/laptops/servers in the network, all, but one are listed in WSUS.

This is what I have done so far:

1) Changing Updates on local PC:

• Go to your Windows XP client and start a new Microsoft Management Console (MMC). At Start, Run, type MMC.
• Use Ctrl+M to add a new snap-in.
• Click Add, and then add the Group Policy Object Editor for the Local Computer.
• Click Close, and then click OK.
• Expand the Local Computer Policy.
• Under Computer Configuration, go to Administrative Templates, Windows Components, Windows Update.
• In the right-hand pane, double-click Specify intranet Microsoft update service location.
• Configure the settings to reflect my WSUS server.
• Click OK and then close the MMC without saving it.

executed wuauclt.exe /detectnow

2) Edited registry key to be pushed to the PCs using GPO

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate]
"WUServer"=http://wsusserver
"TargetGroupEnabled"=dword:00000001
"TargetGroup"="WINXP"
"WUStatusServer"=http://wsuswerver

3) executed wuauclt /resetauthorization /detectnow

4)Synchronised and refreshed the group

I am running out of ideas here. The client is running Windows XP pro, WSUS version is 3.0 and is running on Windows 2008 R2 64-bit.

Please, help!

Thanks!

EDIT 13.IX.2012 @ 15.40 I should have also mentioned that we do have a Windows Update GPO for workstations group and that laptop is a part of that group.