See...
How to troubleshoot Windows Vista and Windows Server 2008 service pack
installation issues
http://support.microsoft.com/kb/947366
Or you can obtain free support from MS: Go to
http://support.microsoft.com/oas/def...4&gprid=582034 &
select appropriate category (e.g., Installation) then click on CONTINUE to
see your available options (e.g., Email Support; Chat Support; Phone
Support, depending on where you reside).
Installation Tips:
• Your computer will restart several times during the installation process:
Make certain you've saved your work and closed all open applications before
beginning the install.
• Disable (1) your anti-virus application, (2) any real-time system
protections afforded by any anti-spyware applications (except Defender), &
(3) your third-party firewall (if any) and then (4) enable the Windows
Firewall before installing (or, should the need arise, uninstalling) Vista
SP2.
• The installation process can take an hour or more: If you're installing
SP2 on a portable computer, make sure that you plug-in the power cord and
have the battery inserted into its bay.
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Client - since 2002
I CANNOT INSTALL SERVICE PACK2 ON MY COM wrote:
> Thanks a lot My Operarting System is Windows Vista Home Premium version
> 6.0
> Service Pack 1. I am updating to Service pack 2 and downloading KB 948465.
> Upon Installation I got message error updating unsucessful. What should I
> do? Any solution? thanks a lot