My wife bought me an HP Pavillion all in one with a touch screen and running Windows 8.1. I wanted to try to run Linux Mint from a USB key, and accidentally disabled all the USB ports. Now I can’t boot the computer because it will not accept input from the USB mouse or keyboard, and at boot time, the touch screen does not accept input.
It asks me to insert a Windows startup disc, which was not supplied with the computer. How can I access the start up menu now?