How to get into your BIOS depends, not on Windows, but on what
motherboard/BIOS you have. As a matter of fact, you have to
access the BIOS before Windows even starts to boot. One common
way is to press the Del key when you first power on, but that's
not necessarily right for your computer. Watch the screen
carefully when you first boot; there's often a message there
telling you what to do. If not, check your system documentation
or check with your vendor.