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#11
Don't wipe the drive do this instead, boot your computer hit the F8 key while booting until you get to the Safe Mode Screen and all that-there should be some sort of option for reinstall of the op system from there. If you wipe the drive with the clean all or clean commands you lose all partition information so don't do that. Every computer is different in the recovery method, I would also suggest looking at the manual that they sent with the machine on how to exactly do it with you model..