Inspiron 15R not booting at all!

Hello Dell Community!

I searched everywhere on the internet for a solution to my problem but did not find it, so here I am to ask for your support.

A few day ago my Laptop started showing a few probems during startup, and when I was finally able to get to my home screen, there was this 100% Disk Usage Issue, that dragged on for almost an hour if not for more time.

So, yesterdey I tried to turn the Laptop on. There was the Dell loading screen, and then a black screen. Windows does not load after this. Note that the screen is turned ON but its all black.

I got to my girlfriends laptop which also runs Win 8.1 and created a USB Recovery Disk. I Also created a USB/DVD Win 8.1 install.

Both failed to make my computer start.  It goes like this: Dell logo, Windows blue logo, black screen.

I tried a few different settings on the boot order and Setup, but nothing seems to work.

Dell Inspiron 15R

Windows 8.1

Service tag - <ADMIN NOTE: Service tag removed per privacy policy>

tl;dr - windows 8.1 not booting past dell logo. tried recovery disk but it doesn't work.

PS: Sorry for the english.