So,few days ago,my computer has worked for almost 15hours.After 15hours I turned it off.Few hours later i tried to start it but he didn’t want to start.I pulled out a battery from my motherboard,and after that I couldn’t choose hard disk i want to use(i have 2 hard disks-on one of them is installed windows vista and on the other one is xp.)i can get in to BIOS,but i can’t choose hard disk(my keyboard doesn’t work.)What is the problem?
