Kept getting up grade to 8.1, so I finally gave in and started the download, stopped at 98 % done & gave error message needs missing files? Insert media stick but it still won't load. SO I GAVE UP & DECIDED TO PUT SYSTEM BACK TO FACTORY, got 66% complete & froze! 2 hrs alter nothing so I shut it down. Now it won't boot up saying preparing auto repair, then it says diagnosing your PC, analyzing your repair, then auto repair couldn't repair your PC. PRESS ADVANCED options, but display is now non responsive to the touch? Also tried using media stick that came with tablet but won't recognize the USB port? Finally got it to boot from usb port after downloading files from media stick it now wants product key number? Which I understand is embedded in bios? So why is it asking me for this info? Is it because it's booting from usb & not the system?
Any HELP would be appreciated.
Thanks
Dan