Acer Aspire V3-471G – After trying out Windows 10 Technical Preview, i wanted to installed Windows 7. But System doesn’t response to F2 key at boot for me to change the boot sequence (to boot to DVD drive).
7) System reboot.
Now i am able to press F2 to access BIOS.
Above steps also workable for Windows 8.
What is UEFI? – http://windows.microsoft.com/en-US/windows-8/what-uefi