When I start the system it shows a black screen with a checking media (fail) then one of 2 things happen it will say no boot device detected or it will attempt to load windows and give me a blue screen and restart.
I have tried to refresh and reset windows 8 however refresh says the drive is locked and reset says drive partition missing. I have also tried startup settings to run in safe mode and that does not work either then lastly I have tried chkdsk /r and it says drive is locked.
I have no idea what has caused this is was working one day the next it wouldnt. Need help