My computer is a Dell 6 months old bought from best buy preinstalled with windows 7. For all this time computer works fine.......today it froze up, I powered down then went to restart it and it says error occured start in windows safe mode. I start safe mode it loads to blue screen with bird and usable mouse cursor. I press control Alt delete together and nothing happens. Unable to do anything with computer. I try to restart go to windows repair and every option puts me to blue screen with bird and mouse cursor moves and nothing beyond that, any enlightenment would be helpful. Thank you.