windows vista sp1 can't install

[Azuria]

hii fellas...
i recently formatted my compaq presario..naturally after that i turn it on my windows update..up to sp1 updates i was fyne to install all updates..but i can't install afterwards..every time i try to install it completes up to 5-10% fails and reverting the changes..when i about to do this is what happening all the time...does any one encountered this situation?????

[Eric B]

resetting the Windows Update Data Store, if it got corrupt.
>. get the command prompt
>. At the command prompt, type net stop wuauserv, press Enter
>. Type rmdir /s %windir%\softwaredistribution\DataStore, then press enter. Type Y to acknowledge the command.
>. Run Regedit (Start > Run, type regedit and press Enter)
>. Go to HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ Curr entVersion \ WindowsUpdate. Right-click on WindowsUpdate in the tree and choose Delete. Close Regedit.
>. At the command prompt, type net start wuauserv, press Enter and close the command prompt.
>. Use the Windows Update Web site again to install updates.

[Raine]

1) "Start > Control Panel >System and Maintenance>Administrative Tools

Double-click Services

Right-click the Windows Update service and select Properties.

Select General tab - make sure that Startup type is Automatic

Next to Service status, check to see if the service is started. If it is not, Start.

2)one more possibility: "Windows modules installer" service is disabled.

Log on as an Administrator -

Start button > Control Panel>System and Maintenance>Administrative Tools

Double-click Services

Right-click the "Windows Modules Installer" service, and select Properties.

Select General tab - make sure that Startup type is Manual."

[ThoMas321]

you can try
*registry fix named windows_update_fix_2.reg
*Use an update readiness tool