I've been gone a week and I turn on my old Dell computer, do some work and before it shuts down, an "update to Windows 7 is loaded. The next time I turn on the computer, it will not open. My wife says I have the BLUE SCREEN problem! I have tried everything I can think of ( system repair disc) to get it to open in the SAFE MODE, but it won't recognize the USB or disc drives. I do not have the installation disc, but even if I did, the drive is not recognized. I have a recent mirror backup. It it just time to upgrade? When I hit F8 and then SAFE MODE, it just goes in a circle and back to windows boot manager. I'm very open to suggestions...