I need help. When I turn on my computer this screen comes up: We apologize for the inconvenience, but Windows did not start successfully. A recent hardware or software change might have caused this. If your computer stopped responding, restarted unexpectedly, or was automatically shut down to protect your files and folders, choose Last Known Good Configuration to revert to the most recent settings that worked. If a previous startup attempt was interrupted due to a power failure or because the Power or Reset button was pressed, or if you aren't sure what caused the problem, choose Start Windows Normally. Safe Mode Last known good configuration Last known good configuration with Command Prompt Last Known Good Configuration (your most recent settings that worked) Start Windows Normally Use the up and down arrow keys to move the highlight to your choice. Seconds until Windows starts: 30 If I pick (Safe Mode), the screen runs a bunch of command lines and freezes and does nothing. If I pick (Last known good configuration or Last known good configuration with Command Prompt), the screen goes to the Windows logo splash and then the screen turns black and the computer does nothing as if it has been turned off. Can you help???