Microsoft Windows Comes in a variety of flavors and colors now. It is the most popular desktop
operating system (or OS). Click on your version of Windows below. If you don't know which
version you are using, you can right-click on the MY COMPUTER icon and left-click on
PROPERTIES. The MY COMPUTER icon will be located either on the desktop (the place
with all the icons on it when you first boot the computer OR it will be located under the START
menu.