2 years ago, my dad bought me a Toshiba Satellite C855D-S5305. It worked fine until it started to get really REALLY slow. I sent it back to Toshiba and they replaced the hard drive. After a few months of it working fine, it started to get slow again. One day I happen to be in a bad mood and hit it right next to the trackpad. Nothing seemed broken. The next time I turned it on though, it went to the Toshiba logo screen for a long time, then the little spinning ring at the bottom popped up. After that, the screen would go black and nothing would happen. I put in the corner and it collected dust for about a year. A few days ago, I decided I was going to fix it. I created a USB installer using Bootcamp on mac. (Keep in mind I didn't install the Apple support software, I just used it to move the files from the iso to the usb). I went into BIOS and booted it with the usb. This time, the windows 8 logo was displayed and the ring was spinning again for a while. After that, the screen just went black. I feel like I'm close to getting it fixed, but I don't know what to do.