Cannot get automatic updates on vista x64

Hi,

I have Vista Ultimate 64 bit with service pack 2. I am unable to get automatic updates. I get an error code 80070490. I did post for help some time back, but I didn't see the reply until months later as I'd been ill. Anyway, I tried following the instructions

to uninstall service pack 2 to enable me to do a repair from my disc, but service pack 2 is not in my add/remove programs.

My hard drive had crashed prior to all this happening, but I never linked the problem with not being able to do updates to that until I was following the steps to uninstall service pack 2. The technician that replaced my original hard drive put in 2 new

ones and mirrored them. This lasted less than an hour and the computer crashed again. They then took out the raid drive and installed another single one (no more mirror). The final replaced hard drive has remained stable so far.

So to get to the point, I have now found that I have 5 'backups'. The first one is named BACKUP, the second is named Windows.old' followed by Windows.old.000, Windows.old.001 and Windows.old.002. I'm assuming these were done each time they replaced the

hard drives. I searched through all of those backups and the only data I found relating to Service Pack 2 is in the first BACKUP.

There are approximately 100 files there for KB948465. All are .MUM files that start with Package_for_KB948465. The last file is also a .MUM but is named VistaSP2-KB948465 with a whole lot of numbers after that. That is the only information I can find anywhere

for service pack 2 so I have no idea how to uninstall it now in order to repair my computer from my original disc. Is there a way around this problem? I really would appreciate any help so that I can get my updates working again.

Thanks in advance.

Sharon

PS Microsoft Fix it Center gives an error message saying 'Default Windows Update data locations have changed'.

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