Checking file system on C:?

[Aus]

So i wanted to restart my computer, and when i did some stuff came up:

something like

"it is recommended that you dont skip this process etc etc..."

then there was a 10 second countdown which allowed me to skip the disk check thing. Problem was, no matter how much buttons i pressed, it didn't allow me to skip the process. Then it went through some stuff like

"checking file system on c: blah blah

... verifying files stage (1 of 3)
20%" etc.

after stage 2 though, there was a black screen and nothing was happening. what is happening? what do i do?

(note: as i was typing this, my wheel calibrated and the startup sound of windows played, but still black screen)

hope you understand.