Today I looked at a Windows 7 computer that would start, but would blue screen before coming up to the Windows login screen. Our customer said his Windows Seven computer started crashing on start up after he restarted his computer for Windows Updates. ( I think that happened to be coincidental ) Here are some of the troubleshooting steps I went through and the solution I found.
Troubleshooting Step One: I hit F8 ( keyboard) on start up and selected Disable Automatic Restart on System Failure. I then left the computer start up and it then blue screened. The blue screen error was UNMOUNTABLE_BOOT_VOLUME 0x000000ED. Continue reading