Okay, so my friend comes over, and I was doing stuff to his PC like adding textures for garry's mod. WELL, so he decides to get on my Gaming PC and play Team Fortress 2. He was going to hit the squiggly button on my keyboard to access the console commands for TF2 but accidentally hits the Sleep/Hibernate button instead.. The computer shuts off.. Will not come back on... After a little bit, I finally got it to cut back on but then it says my BIOS got corrupted.. so it back-ups and finally loads. Then a big-ass frowny face comes on with some words (Cannot read them since it goes by SOO FAST) Next thing I know it goes into a boot-loop trying to diagnose my PC and I done Continue with windows 8.1 and Restart my PC (too afraid to mess with the advanced settings). This continuous boot-loop happens over and over.. and I'm freaking out because it was a $1,000 with MY OWN MONEY. and he just decides to get on and press a button.. I have gone to the BIOS menu and do like extra information about BIOS information and then exit and re-boot and press Alt+F12 but nothing happened... I need someone to help me quick. I am freaking out!