Hey guys, I'm not sure why but randomly after powering my computer two days ago it has seemed to be running alot slower. I first noticed when I tried to turn on my computer it would be at the "Starting Windows" menu for a few minutes and then onto a black screen for a few minutes and then finally the desktop. But other times it wouldn't even make it past the blackscreen and it would just stay on that screen. After I got my computer to launch I couldn't launch "Steam" and when I attempted to download Nortin, AVG, they did not work. I tried to turn off my computer and it was on the "shutting down" screen for 30 minutes or so until I finally just held down the power button. I've also tried to do system restore but it doesn't start up (in safe mode also). Also there have been times in which the sound of my computer just randomly stops working and working in a few minutes. If anyone can help me resolve this problem it would be really nice.