If you are using a computer, and almost all of us are, you are most likely using an operating system that is made by Microsoft. Some of us are still using XP, especially if you have a fairly fast machine, while others are using Vista and Windows 7 or 8. By far, the most popular operating system right now is Windows 7. Windows 8 remains to be the operating system that we love to hate. Many that have purchased it have nothing but regrets for the decision that they made.