Manual Reinstall of Windows Update

[Guest]

In addition to the windows update issue fix mentioned by Mehul earlier, this
may be helpful. There was a virus that went around a while back that would
fubar windows update and this would fix it:

Form Microsoft KBID: 555331



SUMMARY
While troubleshooting Automatic Updates with Software Updates Services, SUS
or Windows Server Updates Services, WSUS, it might be necessary to re-install
the Automatic Client software on Windows Client System (i.e. Windows XP /2000
/2003 systems).
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Tips
Procedure to manually Re-Install Automatic Update Client

You can do this as follows:

1. Go to the Windows Command prompt (CMD.EXE).

2. From the CMD.EXE prompt, run the following command;

For Windows XP SP2
rundll32.exe setupapi,InstallHinfSection DefaultInstall 132
%systemroot%\inf\au.inf

For Windows 2000 SP4/ Windows 2003/ XP RTM and SP1
rundll32.exe setupapi,InstallHinfSection AutoUpdate 132
%systemroot%\inf\au.inf

Running this command prompts you for the XP installation CD. Alternately,
you can use Browse button and navigate to C:\Winnt\Servicepackfiles\I386
where wuapi.dll and other files related to Automatic Update Client can be
found. After running this command, you must restart your computer.

Once restarted, you can open the Services Control Panel Applet and check to
ensure the Automatic Update Service is installed.

APPLIES TO
• Microsoft Windows XP Professional
• Microsoft Windows Server 2003, Standard Edition (32-bit x86)
• Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)

 

[Guest]

I found the file "wuapi.dll" in c:\windows\system32 folder.