In theory you only have to hit f12 once but your timing has to be right.
Toshiba satellite c55 b5299 boot from usb.
Since flash memory became available in the form of usb storage devices laptops and pcs have begun to be produced with the availability to boot from usb peripherals.
Now unplug the usb drive and connect it to the unbootable toshiba computer.
The computer will boot from the selected device if it finds a bootable operating system otherwise it will search for a bootable device following the boot priority set in bios setup.
Bypass superuser password to bios settings on toshiba satellite c55 b5299 laptop.
Either the dvd or the usb.
When the toshiba logo appears press the f12 key on your keyboard.
Turn on the computer.
At the boot menu screen use your arrow keys and select the dvd option or the usb flash option if you have the recovery media as a usb flash drive.
Click yes at the warning message screen.
The easiest way to get it to boot from usb is to plug it in with the power off.
To begin booting from usb you must first establish it in your boot order from your basic input output system bios which you can reach from the post screen the first screen you.
As instructed while booting up i used f10 to open the safe mode screen.
The recovery drive will be created automatically you need to wait for some time since it may take a long time.
After checking around online i downloaded the windows 10 iso file from the microsoft website and used rufus to create a bootable usb drive from a brand new sandisk dual usb 64g.
When the creation process finishes click finish.
Ide cd rom refers to the computer s internal cd rom drive built in selectbay or built in to a toshiba docking device.
Restart the computer repeatedly until it starts up once it boots keep pressing the toshiba satellite boot menu key to enter the bios.
Insert the first disc in the optical drive.