It appears the problem is not with the SP but rather the file(s) downloaded from Microsoft to re-install the Surface Pro original OS. They are not bootable files, or at least I can not get them to boot. You are instructed to enter your serial # of the unit and it directs you to the proper download. The instructions tell you to save the file to your PC (not a USB drive). Open (not extract) the zip file and copy everything to a FAT32 formatted USB drive. The drive will not boot. I even tried to extract the files first and then copy to USB... does not work. Does anyone know can you just do a clean install of Windows 8 (8.1) on a Surface Pro 2 and Surface Pro 3? For now that will solve it. I must be doing something wrong because the recovery file from Microsoft will not boot from a USB stick.