Sarah, I found this at the MSCE website run by Microsoft Press. The question
is, the BIOS, which is actually part of your computer, needs to be changed.
Can a person safely change their BIOS? I do not know.
http://www.microsoft.com/mspress/books/sampchap/5398b.asp
Enabling Hibernate Mode
When your computer hibernates, it saves the current system state to your
hard disk, and then your computer shuts down. When you start the computer
after it has been hibernating, it returns to its previous state. Restarting
to the previous state includes automatically restarting any programs that
were running when it went into hibernate mode, and it even restores any
network connections that were active at the time. To configure your computer
to use hibernate mode, use the Power Options Properties dialog box. Click
Hibernate and select the Enable Hibernation check box.
***If the Hibernate tab is unavailable, your computer does not support this
mode.