How to Change Vista Icon Size

Alternate Method

1. 
   Save your work in any program that may be running.
2. 
   Minimize any programs that are running.
3. 
   Single click the desktop, to ensure that the computer knows you want to edit your desktop and not zoom in/out of something in a program that has been clicked.
4. 
   Locate the Ctrl key on your keyboard.
5. 
   Hold down the Ctrl key on your keyboard, while completing next step.
6. 
   Use the scroll button on your mouse to make your icons bigger(scroll up) or smaller(scroll down).
7. 
   Release the Ctrl key when you feel the size of the icons is permissible to your liking.
8. 
   Operate your computer as you would have done before the big icon size adjustment.