Option 1: Access UEFI BIOS in Windows 10 through PC Settings
Step 1: Press Win key on your keyboard to bring out Windows 10 Start menu. Then click Settings.
Step 2: On Settings panel, select Update&security.
Step 3: Select Recovery and click Restart now.
Step 4: Windows 10 will quickly restart and display the blue screen. Choose Troubleshoot.
Tips: On the screen above, you can set your Windows 10 PC/laptop to boot from a USB drive or CD/DVD drive by choosing Use a device.
Step 5: On the next screen, select Advanced options.
Step 6: Many options display. Select UEFI Firmware Settings option.
Step 7: Next, click Restart to restart your PC/laptop once again. Then Windows 10 will restart and boot to UEFI BIOS.
Option 2: Access UEFI BIOS in Windows 10 through Shift + Restart
In Windows 10 desktop, click Win icon to bring out Start menu, and click Power. Then click Restart while pressing and holding the Shift key on your keyboard.
Alternative: If you can’t sign in your Windows 10, you also can click Power icon on the sign in screen. Then click Restart while holding Shift key.
Then Windows 10 will immediately restart and boot to the Choose an option blue screen, on which select Troubleshoot > Advanced options > UEFI Firmware Settings, and then click Restart to restart your PC/laptop so that Windows 10 will boot to UEFI BIOS setup.