My computer has a ksod problem before it gets to the login screen. ctrl+alt+del and activating sticky keys both do not work. When the computer gets to the black screen, the monitor is on full brightness. After about a second, it dims down and the mouse appears, movable. A few seconds later, the screen brightens and the computer freezes, or seems to. The mouse gets stuck at where I moved it to and will not move. I waited for an hour but nothing happened. Turning it off and on just gets it back to this. My laptop, which has the problem, runs on windows 7 home premium. System restore does not work and does not fix the problem. Neither does system repair. If I am forced to restore the whole hard drive, is there any way to backup via command prompt? Also, the problem is said to be a problem with a recent update or patch. THat is what system repair said.