Restart or power on the computer
Press the BIOS/UEFI key repeatedly as soon as the manufacturer logo appears
Common keys: Del, F2, F10, F12, Esc
Check the motherboard or computer manual for the correct key
On some systems, use Windows Advanced Startup to enter UEFI firmware settings
On some laptops, hold the required key while powering on
If one key does not work, try another common BIOS key