Uninstalled system center, now all computers are going to windows update, need a quick fix

hi everyone, I uninstalled System Center Essentials 2010 which apparently also removes WSUS and now all of my lost with out their leader 300+ desktop computers are attempting to contact the mother ship [windowsupdate.com] completely congesting my bonded t1 circuit. Technet says to set up a stand alone WSUS server and wait two hours. I need a really quick fix, any ideas on how to stop all of these computers quickly?
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Can you add a firewall rule or fake DNS entry for the following


This will stop the machines access windows update and thus not downloading anything.
Matt VCommented:
Deploy a group policy that disables Windows update on the PCs.  The same policy can later be used to enforce WSUS.
Just remember with a Group Policy, the default refresh time with Active Directory for a workstation is 90 minutes, so if your looking for a more immediate solution (i.e. non permanent) that would be quick to implement, just stop the Automatic Updates service (Windows Update on Windows 7) on the workstations (you could create a script with a list of the machines to do this).  If the Automatic Updates/Windows Update service is stopped, it won't contact Microsoft.

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WAMSINCAuthor Commented:
perfect. I ran a script to disable BITS and solved the problem. Anyone reading this be warned: WSUS is a pre requisite for SCE 2010 but if you uninstall SCE it automatically removes WSUS and all of your clients will immediately starting hitting the windows update website causing total network shutdown in most cases due to removal of GPO
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