WSUS .Net 2.0 (KB2539631) keeps failing
I have 59 Dell 780 machines all freshly cloned from one image which are having problems with KB2539631 .net 2.0 update. The machines have downloaded the update from WSUS and now when I restart the machine I get "installing update 1 of 1" "do not turn off your machine" and it stays like this. So far for 6 hours. I have checked Microsoft support website and they recommend a fixit solution 50123. The only way to get one of the machines out of the "installing updates" state was to force a shutdown and start. Then when I try to run fixit 50123 it says another install is currently running (I am assuming this is KB2539631) as I forced a restart. Is there any way out of this? I have gone into WSUS and unapproved the update but I think it is too late for the machines that have already downloaded it.
Any help would be appreciated.