Vista - Kb955430

Hi
For a couple of weeks now Live OneCare has been reminding me I need to install an important update...KB955430. No matter how many times I try, this will not install. I have spent hours looking for suggestions and tried most of them but still it will not install. I have downloaded the Readiness tool, that didn't help either.
I am getting the error code '8007000D' within seconds of clicking on the update button.
I understand the KB955430 is to do with updates and SP2. I am running Vista 64 bit SP1.
I have tried to install the SP2 stand alone from the Windows update page, but that won't install either.
Has anyone got any ideas, Ive obviously got something wrong here but don't know what else to try.
Thanks
Gail

you could try uninstalling sp1.

Do you mean to uninstall sp1 then re-install it? Because I would need sp1 in order to eventually put sp2 on?

Hi Dixie1006,
See this solution in this link helps you:Vista: Error 8007000D During Windows Update | Technipages
EDIT:
This involves registry editing and you have to take necessary precaution and back up your important documents.

after uninstall, you would run "windows update" to determine which updates you need

Yes, I would suggest you the following:
1.Uninstall SP1 and re-boot.
2.Stop any third party Anti Virus programs.
3.Install all important updates in Windows Update.
4.Get the standalone download of SP1 from:Download details: Windows Vista Service Pack 1 Five Language Standalone (KB936330)
I found standalone download is trouble free but it's up to you whether you prefer WU or standalone package.
5.Re-boot and find new updates in WU,install all important updates(you may get IE8 update as important but if you do not want it now, you can untick IE8)
6.Get the SP2 download from here:http://www.microsoft.com/downloads/d...displaylang=en
and install.
7.Re-boot and find new updates and install them.
when you finish remember to activate your Anti virus prog.
Hope this helps to resolve your issues.

Hi
Ive just tried the registry edit and that hasn't worked so I will un-install sp1 next.
I do appreciate your help and I will get back to you when Ive tried the un install!

Im having a problem because sp1 is not in my program list. I have looked on the microsoft website for instructions on how to un install sp1 from a command prompt (How to uninstall Windows Vista service packs as a troubleshooting step) but thats not working either because it appears that sp1 is not in the temp folder - (C:\temp\Windows6.0-KB936330-X86.exe /x:C:\temp).
I don't know how to find it. I have tried copying the windows6.0.... into search but its not finding it???
I have looked in system restore and although I put a check in 'search more than 5 days', its not going back any further than may this year.
Any advise?

Can you look in Installed Updates in WU.

If I look in Update history, the only items in there are the numerous attemps to install KB955430. I frequently run disk cleanup.