What happens next?

How to reset a toshiba laptop
Backup all personal data to an external usb drive or cloud storage service prior to resetting your toshiba laptop.
Resetting your computer will wipe and erase all personal data.
Power off your laptop and remove any external peripherals such as a mouse and usb drives.

Pick your answer from:
[A]. Remove the power switch from your toshiba laptop. Set the battery level to at least 60..
[B]. Connect your toshiba laptop to a power source. Power on your laptop and press the f12 key repeatedly until the boot menu screen appears..
[C]. Make sure you have a blanket or a pillow to pull over your toshiba laptop. Write down the date of the last time you saw the toshiba laptop..
[D]. Review any company policies regarding backup settings. Toshiba smartphones are specially designed to handle this and will generally not allow backup..
[B].