Slow harddrive what to do? (windows 8)

[Svantelol]

So, hello guys, I recently got this problem... Today, when I got home, from school, I Went to my computer, and it was really slow, I am running windows 8. I restarted my PC. When I started it, it came to the loading screen, a while, like 10 minutes, then the sad screen that tells me it crashed. And then it starts over with the booting, and same thing happens. After that I tried to re-install my windows. But that aint possible neither, its so slow, I cant re-install my windows, it just says "Checking the install files". Nothing happens, is my harddriver broken? Or what can I do, please help me.

 

[Dogsnake]

Please list your hardware specs. and any other software you are using. Have you tried booting in safe mode? How was the system running the day before? What did you do to it before you shut it down the day before if it was ok? Have you tried running a selective startup option from safe mode to try to find the conflicts?