factory reset on an Asus X551C

[ciaguirand]

Have an Asus X551c which stop coming on on windows. i was trying to use the USB Scandisk that come with the machine when i purchased it to do a factory reset but it keep giving me an error that said "UNABLE TO RESET YOUR PC. A REQUIRED DRIVE PARTITION IS MISSING." what can i do to make it work. i replace the hard drive it keep on giving me the same error message. What should i do next?

 

[Vic 40]

If you still have warranty on it go back to the store where you bought it or contact asus.

You could download an iso from your windows version,put it on a dvd or boottable usb and reinstall with the productkey on that laptop.With windows 8 might the productkey be stored in the bios so it might not be on a sticker.
Make sure you have the right drivers on a usb stick so you can install those,just to be sure.Get these from the asus site.

Tried tapping F9 when you start the laptop? Maybe there's a recovery partiton with which you can put it to factory default.Could be the partition that's missing though.