My daughter's laptop hung up during a Win 8 update, unfortunately she turned it off.
Upon rebooting, got Flash BIOs screen, and it showed same message (Preparing to configure Windows, do not turn your computer off).
It stayed that way for about 8 hours, so I inserted a linux (unbuntu live) disk, and booted successfully. I couldn't access the main C drive so I powered down (per the Unbuntu instructions), took out the DVD, and then attempted to reboot, now when I hit the power button, the front power indicator just blinks. Nothing.
I researched this, and several articles said to unplug the power adaptor, remove the battery, hold down the power button for 30 seconds, etc. The problem is that the battery is not accessible, have to take back cover off. I am prepared to do this (computer is out of warranty) just wondered if there is an easier solution, and possibly why its doing this.
Toshiba Satellite P55t-A5202, Windows 8, 8 gigs of RAM, 1TB HD