In general, I am very much an "I'd rather be outside" kind of gal. Sartorially speaking, this means that I spend most of my time rotating my footwear between my big three: Birkenstock sandals, New ...
and it depends on your manufacturer. You may be able to see which key, in the bottom left or right side of your boot screen when your computer is booting. Read: How to use BIOS settings on Windows ...