You're running an HP/Compaq notebook if I remember correctly. You should be wanting to tap F10 from power-up to bootup into the recovery partition. Once in there I recommend choosing the advanced option and doing the 'full destructive recovery' - that way it formats c: partition. Also, if you haven't already, after you do the recovery make sure you that make your recovery discs for your computer. I believe you'll find the option under start-programs-hp tool-recovery disc creator or somewhere along those lines.
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