Give this a try..........

Go to Start>Run
Key in:
cmd
Click on OK or hit ENTER

In the Command Prompt window, key in:
notepad registerit.cmd
Hit ENTER

A Notepad window will open with a dialogue box asking if you want to create
a new file. Click on Yes in the dialogue box.

Copy/paste the following, between but not including the asterisks, into the
Notepad window:

*********************

net stop wuauserv

regsvr32 wuapi.dll

regsvr32 wups.dll

regsvr32 wuaueng.dll

regsvr32 wuaueng1.dll

regsvr32 wucltui.dll

regsvr32 wuweb.dll

regsvr32 jscript.dll

regsvr32 atl.dll

regsvr32 softpub.dll

regsvr32 msxml3.dll

net start wuauserv

*****************

When finished pasting the above commands into the Notepad window, go to
File>Save then File>Exit.

Back in the Command Prompt window, key in:
registerit.cmd
Then hit ENTER

Click on OK in the RegSvr32 dialogue box that will appear for each of the
.dll files that are being registered. If any are unsuccessful, take note of
which one(s) were not successfully registered.

When the file is done running, and you're back at the command prompt, key
in:
exit
Then hit ENTER

Now try the Windows Update site.

Regards,

--
Patti MacLeod
Microsoft MVP - Windows Shell/User