Step 1. Access your Windows settings
Navigate to your Windows start menu and select “Settings” located on the left panel. You can also access your Windows setting by using Windows shortcut keys Windows + I.
Step 2. Select “Update & security”
Within this window, you may need to scroll down to find the “Update & security” button.
Step 3. Select “Recovery”
Step 4. Click “Restart now”
Under “Advanced startup” you will see a “Restart now” button that allows you to reboot your PC for configuration or restoration.
After your PC boots back up, you will be met with a special menu that gives you the option to “Use a device,” “Continue,” “Turn off your PC,” or “Troubleshoot.”
Step 5. Select “Troubleshoot”
Within this window, select “Advanced options” then select “UEFI Firmware Settings.” This will allow you to enter BIOS on your Windows 10 PC.
Step 6. Confirm your restart
If your PC is running Windows 8.1 or Windows 8, these methods will also work for your older operating system.