Restore Toshiba C55-A5302

Mar 27, 2018
The 0 key isn't working. When I do that, the only options I get are; Choose an operating system to start or press tab to select a tool. Then it shows windows 7 to select, or Tools: Windows Memory Diagnostic. Is there another way around?
If you can access the innards of the laptop, while it's powered down, remove the keyboard and see if a USB driven keyboard allows you to boot to OS. I'm assuming that more than one key on the keyboard of your laptop is causing the screen you're seeing to come up.