Arch Linux Instalation Killed Laptop
So I had arch linux installed on my laptop a while a back and decided to play around with it the other day. Unfortunately I had forgotten my user name to login. I decided the only course of action would be to reinstall Arch... So i popped in the CD and the computer booted into the installation menu. I did not continue to install Arch because I had to leave, so I hit the down arrow to stop the countdown timer and left the installation open on my computer. I later returned to find that my computer was off (it was not turned off by someone and the battery wasn't dead.) So naturally, I tried to turn it back on. I press the power button, the Lenovo screen appeared and then the computer immediately turns off... It now does this whenever I try to bootup. It does not even make it to the page where you can choose to access the bios menu... So I can't boot up from the HDD, or a CD... What happened? I hope my boot sector isn't ****ed, because this is my school laptop(which I need.) Any help or explanation would be greatly appreciated.