Windows update fails with error code 0x643

2009-10-15 21:18:40:783 1068 11f8 Agent   *   Title = Microsoft .NET Framework 1.1 Service Pack 1 Security Update for Windows 2000, Windows XP, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 (KB953297)

2009-10-15 21:18:40:814 1068 11f8 Agent   *   UpdateId = {A72E5A3C-38CC-4976-8E17-92D9D043BEDF}.100

2009-10-15 21:18:40:814 1068 11f8 Agent   *     Bundles 1 updates:

2009-10-15 21:18:40:814 1068 11f8 Agent   *       {3A769F99-AF69-4268-B78D-D6DFB38AE573}.100

2009-10-15 21:18:47:580 1068 11f8 Handler Attempting to create remote handler process as MUNA\Muna Sill in session 0

2009-10-15 21:18:47:861 1068 11f8 DnldMgr Preparing update for install, updateId = {3A769F99-AF69-4268-B78D-D6DFB38AE573}.100.

2009-10-15 21:18:53:845 3908 628 Misc ===========  Logging initialized (build: 7.2.6001.788, tz: -0500)  ===========

2009-10-15 21:18:53:845 3908 628 Misc   = Process: C:\WINDOWS\system32\wuauclt.exe

2009-10-15 21:18:53:845 3908 628 Misc   = Module: C:\WINDOWS\system32\wuaueng.dll

2009-10-15 21:18:53:845 3908 628 Handler :::::::::::::

2009-10-15 21:18:53:845 3908 628 Handler :: START ::  Handler: Command Line Install

2009-10-15 21:18:53:845 3908 628 Handler :::::::::

2009-10-15 21:18:53:845 3908 628 Handler   : Updates to install = 1

2009-10-15 21:19:21:845 3908 628 Handler   : WARNING: Command line install completed. Return code = 0x00000643, Result = Failed, Reboot required = false

2009-10-15 21:19:21:845 1068 1544 AU >>##  RESUMED  ## AU: Installing update [UpdateId = {A72E5A3C-38CC-4976-8E17-92D9D043BEDF}]

2009-10-15 21:19:21:845 1068 1544 AU   # WARNING: Install failed, error = 0x80070643 / 0x00000643

2009-10-15 21:19:21:845 3908 628 Handler   : WARNING: Exit code = 0x8024200B

2009-10-15 21:19:21:845 3908 628 Handler :::::::::

2009-10-15 21:19:21:845 3908 628 Handler ::  END  ::  Handler: Command Line Install

2009-10-15 21:19:21:845 3908 628 Handler :::::::::::::

2009-10-15 21:19:22:127 1068 11f8 Agent *********

2009-10-15 21:19:22:127 1068 1544 AU Install call completed.

2009-10-15 21:19:22:127 1068 11f8 Agent **  END  **  Agent: Installing updates [CallerId = AutomaticUpdates]

2009-10-15 21:19:22:127 1068 1544 AU   # WARNING: Install call completed, reboot required = No, error = 0x00000000

2009-10-15 21:19:22:127 1068 11f8 Agent *************

2009-10-15 21:19:22:127 1068 1544 AU #########

2009-10-15 21:19:22:127 1068 1544 AU ##  END  ##  AU: Installing updates [CallId = {411DAAA4-991E-40F4-ABCF-10B6F921CC51}]

2009-10-15 21:19:22:127 1068 1544 AU #############

2009-10-15 21:19:22:127 1068 1544 AU Install complete for all calls, reboot NOT needed

2009-10-15 21:19:26:845 1068 f6c Report REPORT EVENT: {BDB7A931-8DE2-450A-AD27-C29BFEE1C85E} 2009-10-15 21:19:21:845-0500 1 182 101 {A72E5A3C-38CC-4976-8E17-92D9D043BEDF} 100 80070643 AutomaticUpdates Failure Content Install Installation Failure: Windows failed to install the following update with error 0x80070643: Microsoft .NET Framework 1.1 Service Pack 1 Security Update for Windows 2000, Windows XP, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 (KB953297).

See http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/b7598149-58e2-43ad-b8b4-1a8e4341d9e6 

~Robear Dyer (PA Bear); MS MVP (IE, Mail, Security, Windows & Update Services) since 2002; Disclaimer: I neither represent nor work for Microsoft

Error code 643, .Net Framwork 1.1 Service Pack

Kevin Hau wrote: Here's a good KB that has some steps on how to fix the 643 error (uninstall .Net, cleanup, reinstall).

http://support.microsoft.com/kb/923100 ...

Let me expand on Kevin's suggestion:

1. Before doing anything else, write down the .NET Framework versions which are already installed:

How to determine which versions of the .NET Framework are installed and whether service packs have been applied

http://support.microsoft.com/kb/318785

2. Now see Resolution Method 2 in...

When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0, or 3.5, you may receive Windows Update error code "0x643" or Windows Installer error code "1603" (ignore the title, if need be)

http://support.microsoft.com/kb/923100

After running the appropriate/needed tool, (re)install all .NET Framework versions manually using the download links on the page then run Windows Update manually to install security updates for same.

NB: KB923100 references this page: http://blogs.msdn.com/astebner/archive/2006/05/30/611355.aspx.  Please read ALL of it as well as the related page http://blogs.msdn.com/astebner/pages/8904493.aspx before using the .NET Framework Cleanup Tool.

~Robear Dyer (PA Bear); MS MVP (IE, Mail, Security, Windows & Update Services) since 2002; Disclaimer: I neither represent nor work for Microsoft

I Also am having problem getting the Net Frame updates to work on my laptop and I have had the same problem two or three times. I'm using XP