My computer will not start up. When I try I get the blue screen with (Bad_system_config_info). When I tried to put the os disk in to fix it the computer would not read the DVD drive that is in it. I tried 2 Other DVD drives that were internal and one external. I can get to start to linux that is running off of a USB drive. I got all my things on it off but I would like to use it Again. Someone please help.