I am updating my computer and I thought it was finish but my computer restarts and I encountered the death blue screen. I can't switch into safe mode, safe mode with networking, safe mode with Command Prompt and Last Known good configuration. I don't know how to solve this problem because I can't get into any of the modes and even I inserted the installation disc I can't still see any repair computer or what. It will just turn to blank screen with space at the upper left after if i will insert the installation disc. Please help me. I really need your help.