This video is a tutorial on how to set the screensaver in Windows 7. To start, you need to click on the start menu. Next, click on control panel. Click on the personalization link in the first column. On the next screen, go to the bottom right and click on the box labeled 'screensaver'. It will open up a new window. From that window, you can click on the drop-down menu to select a variety of screensavers. You can see the preview of the screensaver in the animation above the buttons. You can also see a full-screen preview by clicking on the preview button. You are able to adjust the time and length of the screensaver on this window. Just click on apply and save when you are done.