You can try this fix:
The hybrid sleep feature and the hibernation feature in Windows Vista may
become unavailable after you use the Disk Cleanup Tool :
http://support.microsoft.com/kb/928897
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Mark L. Ferguson MS-MVP
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"cmartindale" <> wrote in message
news:...
>
> Hello,
>
> I'm hoping someone can help me. I bought a new HP dv7-1020us this past
> Thursday. It came with Vista x64 pre-installed. I've made sure all the
> drivers are up to date.
>
> When I go to hibernate, the screen immediately goes black and there is
> a flurry of disk activity for about 2 minutes. After that finishes, all
> the lights remain on my laptop: power, volume, etc. I can wait 5 - 10
> minutes and the computer never fully turns off.
>
> I end up having to hold down the power button to shut off the computer.
> On start up after that, I get the "Windows was not properly shut down"
> message and there's no hibernation information.
>
> My previous laptop, a HP dv9230us, had no problems with hibernation
> under Vista 32bit.
>
> Can anyone provide any guidance as to why this is happening? I've also
> noticed that shutdown is quite a long process as well. Is this common
> under x64?
>
>
> --
> cmartindale