I just picked up a "Compaq Presario V5101US" Laptop for $40.00 off Craigslist.It has a broken hinge & the guy somehow deleted Win XP. My question is: How do I re-install the operating system and leave the recovery partition intact? PS: I can get into bios,win set-up etc.Just do not know how to do the ? asked & possibly get into recovery mode...Thanks!!