Stuck on Black screen forever

guys, I read most of threads about black screen on windows 8.1 but couldn't resolve my problem

here's the situation:
- i have windows 8.1 for some weeks. every thing works fine
- today after going to sleep mode I can not start windows. it goes to a black screen after windows logo and restarts won't help.
- Tried the 'fixmbr' thing on command prompt from windows startup repair.
- Windows startup repair obviously finds nothing
- tried refreshing pc from startup repair but after a few minutes it said that it has failed refreshing
- Tried forcing windows to go to "safe mode" by using command prompt but the same thing

any solution except formatting and reinstalling windows?
my laptop is a custom CLEVO p150hm1.

Since you have a command prompt--well, you need an elevated command prompt--you could try running:

Dism /Online /Cleanup-Image /RestoreHealth

& sfc /scannow

If you can pull up Task Manager click on File/New task & type in cmd.exe & choose to run it as Administrator.