The desktop is the work area on a computer screen that simulates the top of an actual desk. The desktop contains the Recycle Bin and icons (shortcuts to programs, files, folders, and various types of documents such as letters, reports, or pictures) that you can arrange just as you'd arrange real objects on a desk. 

To customize your desktop, you can do the following:

  • Change the desktop background image and colors.
  • Use screen saver setting to switch to a pretty animation when you've stopped working for a time. 
  • You can modify your screen resolution setting, which controls how sharp and detailed a picture your screen displays.
  • Make text larger or smaller. You can change the size of all text on your screen with an easy setting.
Changing Desktop Background

Your desktop background (also called wallpaper) can be a digital picture from your personal collection, a picture that comes with Windows, a solid color, or a picture framed with a color.
  1. Right-click an empty area on the desktop and choose Personalize from the shortcut menu. The following on the screen.  

  2. Click the Desktop Background link to display the Desktop Background dialog box, as shown in the following figure:  

  3. Select a category of desktop background options from the Picture Location list box.
  4. Click the image preview you want to use. The background is previewed on your desktop.
  5. Click Save Changes to apply the settings and close the dialog box. 
Changing Screen Resolution 
Depending on your computer and monitor, you can display windows 7 with various resolutions.
  1. Right-click an empty area on the Desktop and click on the screen resolution Option from the activated shortcut menu. 
  2. From the display dialog box, use the Resolution Slider to select a lower or higher resolution. Higher resolutions such as 1366 x 768, produce smaller, crisper images. Lower resolution, such as 800 x 600, produce larger, somewhat jagged images. This is illustrated in the following figure: 

  3. Click OK to set the newly set resolution.
Setting up a Screen Saver
A screen saver is an animated image that is activated on a personal computer display when no user activity has been sensed for a certain time. Windows comes with several screen savers. You can also create your own screen savers from personal pictures that you've saved on your computer. 
  1. Right-click an empty area on the desktop and choose Personalize from the shortcut menu.
  2. From the personalization dialog box, click the Screen Saver link to display the Screen Saver Settings dialog box shown below:  

  3. From the screen saver drop-down list, choose a screen saver of your choice. You will be able to see the preview of your choice in the upper section of the dialog box. 
  4. Use the arrow in the Wait text box to set the number of inactivity minutes that Windows 7 wait before displaying the screen saver. 
When you are finished with your setting, click Apply and then OK button.