Just found the following steps, as I said earlier not all BIOS is the same;
Turn on (or restart) your computer.
When F2 = Setup, F12 = Boot Menu appears in the upper-right corner of the screen, press <F12>.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop. Then shut down your computer and try again.
The Boot Device Menu appears, listing all available boot devices. Each device has a number next to it.
At the bottom of the menu, enter the number of the device that is to be used for the current boot only.