I have been having these problems lately were sometimes the computer will turn off when I request it to restart. Often times when I download something or do windows updates that requires me to restart the computer this problem will occur. I tried putting it in safe mode to see if it was a hardware or software problem and found that the computer would turn off. This made me wonder if It was a hardware problem. I have only installed my video card drivers on my computer, my motherboard driver CD won't work and I haven't installed any drivers on my CPU. Could this be causing the problem or might it be a hardware problem or something else? also wen I turn it on it will go for a few seconds than turn off.