Have you read stuff here?
http://technet.microsoft.com/en-us/windows/aa905065.aspxBut probably the best thing is to contact your computer's manufacturer.
>I presently have Vista Home Premium on my computer.
>
>I'd like to upgrade to Vista Ultimate because of BitLocker. But before doing it I'd like to know if I can install it on my computer. I mean I don't want to install it with a USB drive.
>
>Is there a tool somewhere that would let me determine if my computer is BitLocker ready?
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer