SP2 cannot be installed

I am having difficulty installing SP2. ERROR_NOT_FOUND(0x80070490) is
returned. I installed KB947821(System update readiness tool) but to no
avail. System properties shows that SP1 is installed.

Windows Update window shows red X mark on the left side of "Download and
install updates for your computer" and the Windows Update is not working.

Any suggestion is appreciated.

churin

Error 0x80070490

This issue may occur if there is corruption in the Component Based Servicing (CBS)
manifest.

http://support.microsoft.com/kb/958044

--
Peter

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"churin" <> wrote in message
news:uEDnA%...
>I am having difficulty installing SP2. ERROR_NOT_FOUND(0x80070490) is returned. I
>installed KB947821(System update readiness tool) but to no avail. System properties
>shows that SP1 is installed.
>
> Windows Update window shows red X mark on the left side of "Download and install
> updates for your computer" and the Windows Update is not working.
>
> Any suggestion is appreciated.