Applies to Installation of Windows 8 / 8.1 on Machines running Windows 7 or Vista Previously

1. Boot using the Installation Disc
2. Click Install but do not continue ahead.
3. Press SHIFT-F10 to bring up the console
4. Type “diskpart”
5. Once within the diskpart prompt
   • Type: list disk
   • Type : select disk <number> (the number of the disk you wish to convert)
   • Type: clean (to remove any existing configuration settings on the drive)
   • Type convert to mbr

 Apologies for the poor screenshots 🙂