We received error on almost all x64 machine "fatal error c0000034 applying update operation " after Win7 SP1 was approved in WSUS. Is there official Microsoft report on this? How to solve it? We have 30-40 engineering workstations running x64 and 90% of them are down because of this. To make things worst, on test deployment all went ok...

Hi DavidRiHr, Here's a Knowledge Base article about this issue - http://support.microsoft.com/kb/975484 You may also keep track of this threat for the same problem: http://social.technet.microsoft.com/Forums/en/w7itproinstall/thread/1c9a7151-b48c-4a98-aae7-a4b82682ea8e Hope it helps. Styx

Hi, thanks for Kb. First try looks promising... Reason for this error is still unknown? What a bull***...