I am getting a WSUS installation failure for Windows server 2008 SP2 x64, showing an error 0x80070643. Doing some research from the WSUS update log, i found that a .net 3.5 Sp1 update had failed months ago. I used the MS .net cleanup utility to uninstall the .net 3.5 framework. I then rebooted the server, reinstalled the .net 3.5 sucessfully, updated it with all the security updates it needed, then retried the Sp2 install, with the same result. i have included the last part of the WSUS update log for review. Anyone have any ideas?
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2010-03-29 15:33:55:722 560 18cc AU ## START ## AU: Install updates
2010-03-29 15:33:55:722 560 18cc AU #########
2010-03-29 15:33:55:722 560 18cc AU # Initiating manual install
2010-03-29 15:33:55:722 560 18cc AU # Approved updates = 1
2010-03-29 15:33:55:722 560 18cc AU <<## SUBMITTED ## AU: Install updates / installing updates [CallId = {04D1B104-3AAF-4E1A-B0BA-C37242933E69}]
2010-03-29 15:33:55:722 560 1a74 Agent *************
2010-03-29 15:33:55:722 560 1a74 Agent ** START ** Agent: Installing updates [CallerId = AutomaticUpdates]
2010-03-29 15:33:55:722 560 1a74 Agent *********
2010-03-29 15:33:55:722 560 1a74 Agent * Updates to install = 1
2010-03-29 15:33:55:722 560 1a74 Agent * Title = Windows Server 2008 Service Pack 2 Standalone x64-based Systems (KB948465) - English, French, German, Japanese, Spanish
2010-03-29 15:33:55:722 560 1a74 Agent * UpdateId = {56E25ED4-8D4A-4E8C-81D8-CC71983C58E0}.103
2010-03-29 15:33:55:722 560 1a74 Agent * Bundles 1 updates:
2010-03-29 15:33:55:722 560 18cc AU Getting featured update notifications. fIncludeDismissed = true
2010-03-29 15:33:55:722 560 1a74 Agent * {45FF69C1-3C27-4A10-A617-BFB8C15C93A4}.103
2010-03-29 15:33:55:722 560 18cc AU No featured updates available.
2010-03-29 15:33:55:722 560 1a74 Agent WARNING: LoadLibrary failed for srclient.dll with hr:8007007e
2010-03-29 15:33:55:753 560 1a74 DnldMgr Preparing update for install, updateId = {45FF69C1-3C27-4A10-A617-BFB8C15C93A4}.103.
2010-03-29 15:33:59:310 5556 fb0 Misc =========== Logging initialized (build: 7.4.7600.226, tz: -0700) ===========
2010-03-29 15:33:59:310 5556 fb0 Misc = Process: C:\Windows\system32\wuauclt.exe
2010-03-29 15:33:59:310 5556 fb0 Misc = Module: C:\Windows\system32\wuaueng.dll
2010-03-29 15:33:59:310 5556 fb0 Handler :::::::::::::
2010-03-29 15:33:59:310 5556 fb0 Handler :: START :: Handler: Command Line Install
2010-03-29 15:33:59:310 5556 fb0 Handler :::::::::
2010-03-29 15:33:59:310 5556 fb0 Handler : Updates to install = 1
2010-03-29 15:33:59:981 560 1acc Report REPORT EVENT: {297262EA-C5FF-4830-9177-63C96EA103E7} 2010-03-29 15:33:54:973-0700 1 189 102 {00000000-0000-0000-0000-000000000000} 0 0 AutomaticUpdates Success Content Install Installation Ready: The following updates are downloaded and ready for installation. To install the updates, an administrator should log on to this computer and Windows will prompt with further instructions: - Windows Server 2008 Service Pack 2 Standalone x64-based Systems (KB948465) - English, French, German, Japanese, Spanish
2010-03-29 15:33:59:981 560 1acc Report CWERReporter finishing event handling. (00000000)
2010-03-29 15:34:03:428 5556 fb0 Handler : WARNING: Command line install completed. Return code = 0x800f0a05, Result = Failed, Reboot required = false
2010-03-29 15:34:03:428 5556 fb0 Handler : WARNING: Exit code = 0x8024200B
2010-03-29 15:34:03:428 560 18c8 AU >>## RESUMED ## AU: Installing update [UpdateId = {56E25ED4-8D4A-4E8C-81D8-CC71983C58E0}]
2010-03-29 15:34:03:428 5556 fb0 Handler :::::::::
2010-03-29 15:34:03:428 560 18c8 AU # WARNING: Install failed, error = 0x80070643 / 0x800F0A05
2010-03-29 15:34:03:428 5556 fb0 Handler :: END :: Handler: Command Line Install
2010-03-29 15:34:03:428 5556 fb0 Handler :::::::::::::