Microsoft released an update to WSUS 3.0 SP2 on Friday, KB2734608.
The update lets servers runing WSUS 3.0 SP2 provide updates to Windows 8 and Windows Server 2012 machines.
Click here for full details.
Below is a walkthrough of the installation.
From the KB Article page download the x32 or x64 bit version of the update, for SBS 2011 we’re downloading the x64 bit version.
On my test SBS server the update took about 5 minutes to install.
Open the SBS Console, go to Security and the Updates tab. Click Synchronize now.
The synchronization can take a while, so check back later. Once it’s completed you are ready to update Windows 8 and Windows 2012 computers.
If you have Windows 8 or Server 2012 computers that have synchronized with WSUS prior to the update being applied you have a bit more work to do.
On the client computers run the following commands.
net stop wuauserv
rd /s %windir%softwaredistribution
net start wuauserv
You should now be able to receive Windows 8 and Windows 2012 updates from the WSUS server.