I made this video because my Windows 8 crashed and I was not able to find anywhere a complete step-by-step solution. It took me over 12 hours at that time of researching it and experimenting. I hope it will save you some time, help you fixing it and it will give you answers to majority of questions.
Video on how to make a recovery drive:
Video about using command prompt to move your files to safety (in case everything fails and you have to format):
Dator112dotCom wrote that the problem might be also due to broken hard drive:
“Repairing disk errors can be also due to bad hard drive, for my case I had to replace customers hard disk in order to fix this issue, because I was getting the same spinning logo while trying to reinstall windows 8 from DVD or network.”