Hi,
Boot the laptop first inside BIOS by pressing F2 while on the Toshiba screen. Depending what function key is listed under the screen saying "enter Setup".
- Once in BIOS you can only use your keyboard to navigate.
- Locate Boot tab and under Boot Option Priorities is where you'll change the boot order.
- Every BIOS model has different ways on changing what should be first but you should see the instructions either on the side or at the bottom of the BIOS screen.
- Make sure to press F10 to save the changes.