I had 8.1 on my laptop but suddenly wouldn't boot "not recognised", online forum said change the "secure boot" and change the boot mode to "CSM boot" would fix it. This didn't work so download a recovery disk as I couldn't even boot my separate recovery drive on the laptop. I created a bootable USB and was able to bring up the repair mode, but when trying to use any of the options it kept stating that the drive was locked! I had left the computer for a bit and returning it was loading windows.....only to find that it install 8.1 and I have lost everything QUESTION IS, 1) Is there anyway of recovering everything on my drive...? 2) Why won’t it recognise my "D" Recovery drive and if I got that to work would it recover my files?