The BIOS (Basic Input/Output System) on your PC controls fundamental operations, such as guiding the computer on how to boot ...

Press a key during startup, or Shift-click Restart in the Start menu This article explains how to access the BIOS on a Windows 11 PC. These steps will also largely work on Windows 10, too.

Reboot your Windows 11/10 computer and enter the BIOS ... If your computer doesn’t offer any options to access its BIOS before your OS loads then it is possible that it uses UEFI instead.