I've personally never used any sort of Blue Screen of Death analyzing software, so I don't know if what I'm guiding you to will be any big help, but it's free, just look at the menu list on the upper right hand side and you'll see "download". It claims to be able to tell why your computer crashed or Blue Screened, but it also say's that it can only tell you why if the crash or Blue Screen was related only to driver problems or issues.
@Zen
Thank you Zen for such software it is quiet useful and I have analyzed that all the errors were caused by Windows mean that my windows new installation , I owe you man