Having trouble booting computer after failed Windows 10 update. After cancelling the install restarted machine but only came up with a cursor and a blue background. Got to task manager so changed msconfig to start in safe mode on restart and was going to go back to a restore point. Tried to restart and machine won't boot. Nothing coming up on monitor. In fact, monitor not even being activated. Tried using a recovery disk but it won't read or start with it. Essentially machine turns on and then nothing happens. Was working fine just before.