windows update failure

billycasper_2

Hi everyone. I have a little problem with windows update. When the automatic update finds new updates they appear to install but crucially when the computer is restarted they fail to take effect. the process fails and the computer reverts back to its previous state. . the windows update log says failed update against all but windows defender updates..
I did use microsoft fixit. which not very helpfully told me
"windows update data locations have changed - checked"..
there was no option to fix...
I then tried to run a scan via command prompt in admin but despite using
sfc /scannow in every conceivable way (capitals etc) I get the error message.
"sfc not recognised as an external or internal command"
any ideas on where to go are what to do would be much appreciated.
I am running vista (sp2) home edition

WilliamO

Try creating a new user account and then do a windows update. If all is well it could be a corrupted profile (user account) or something. If you know what the KB numbers of the window updates are you could manually download them from the ms website. If they go through, hopefully they will also clear any blockage. You could also do a system restore.

phona

Your syntax for sfc is correct. However, it is possible that the utility was not included in Vista Home Premium. From what I read on a Microsoft article, it implied the utility was included with Vista Pro and Ultimate and all 7 and 8. That could at least answer one mystery!
If it does exist though, you'll need to find it yourself since command prompt can't. You could try using the search box on your start menu. Type sfc and it should find sfc.exe - if it exists!

Have you had any hardware faults or viruses lately?

Laz123

Sfc does exist in Vista Home because I've run it.

Try running in safemode.

billycasper_2

Thank you for the replies. will attempt to try all of your suggestions and let you know..
oh. no viruses lately . everything else running just fine.. i may run a hijack scan just in case

mart44

Do you use a Registry cleaner? The only time I've had trouble with Windows Updates failing, it was due to over-zealous manual cleaning of the Registry. Only happened once, lesson learned.

billycasper_2

mmm that doesnt sound good.