In this mode, the UEFI firmware functions as a standard BIOS instead of UEFI firmware.
This can help improve compatibility with older operating systems that weren’t designed with UEFI in mind — Windows 7, for example.
Just as the BIOSes included with typical laptops offered fewer options than the BIOSes include with motherboards intended for enthusiasts, the UEFI firmware settings screens on tablets and convertibles offer fewer options than those on UEFI-enabled desktops.
A television remote control is an example of an engineered product that contains firmware.
This doesn’t really matter — change the time in your operating system and it will change the system clock time, too.
In fact, the television's mother board has a complex firmware too.Click the Power option under the Settings charm, press and hold the Shift key, and click Restart.Your computer will reboot into the boot options menu.On desktop motherboards designed for tweakers, you should hopefully find these settings in your UEFI settings screen.While the methods of accessing the UEFI settings screen and booting from removable devices are both different, not much else has changed.If your PC has this option, you’ll find it in the UEFI settings screen. The BIOS has generally included a built-in clock that displays the time and allowed users to change it from the BIOS settings screen.