Recovery manager deleted

For some reason Recovery manager got deleted off my computer before i could make the recovery disks. is there a way to restore recovery manager back to my computer? I tried getting the recovery disks from HP but they dont have anymore, and i downloaded the 32-bit recovery manager but that wont set my computer back to factory settings.

Can someone help me set my computer back to Factory Settings...without--the recovery manager or disks made or from HP??
Your only option is to borrow a Windows Vista DVD from a friend and install it with the product key listed on the bottom/side of your machine.