In this video tutorial, viewers learn how to minimize or close multiple windows on a Mac computer. The technique shown in this video allows the user to simply close or minimize all the opened windows all at once. To close all the opened windows, hold down the Option key and Close button. To minimize all the open windows, hold down the Option key and Minimize button. This video will benefit those viewers who use a Mac computer, and would like to learn how to close or minimize all the opened windows on the screen, instead of closing or minimizing the windows one-by-one.