From your video I never saw you press any keys. Hold down the shift key and tell windows to shut down. After it has shut completely down do the following:
1. Press the power button and as soon as you press the power button start tapping on the F1 key to enter BIOS.
You do not have to wait for a screen to tell you to press a key. Just do it.
If F1 doesn't work you could try the other common keys such as F2, DEL, ESC, F10 or ESC....