Hi, I am having trouble every time I boot up my computer. Every time it's about to start it restarts for no apparent reason and takes me to a black screen which say, "We oplogize for the incomvenience but Windows did not start sucessfull." Then gives me these options: Start windows normally, start windows with i'ts last working configuration, safe mode, and safe mode with networking. If i the first two it will keep restarting.I have not installed any new hardware or software. If any one has a solution to this I will be really thankfull.