"Most HP and Compaq desktop PCs that ship with Windows Vista and XP do not come with recovery discs. Instead, they use a partition on the hard drive. Using a hard drive partition provides a convenient, more stable recovery solution. To access a hard drive recovery, turn on the computer and repeatedly press F10 (XP) or F11 (Vista) until a Recovery window opens."
--This is like my computer, my Drive D is called HP Recovery, but I also have the recovery disks that were created by HP.