Dell laptop running Windows XP Home. When you turn it on, it will not get past the Windows XP loading screen, with the animated progress bar. It will sit on that screen and never proceed. Safe mode (any style) sticks after loading Mup.sys. Last know good configuration results in the same. I ran a virus scan using a rescue disk and nothing was found. I have disabled all on-board hardware in the bios to no avail. I have inserted the XP disk an upgrade to XP Pro to no avail. I cannot find a way to run sfc, but would like to if possible.
Not wanting to reload from scratch because of the custom software installed.