If you have several users sharing the same PC, When Windows launches there is a list of User Accounts and corresponding picture icons. In Windows 7 it is possible to use your own photo, or an image of your choosing to replace the system generated picture. Go to Start, Control Panel, User Accounts. Select Change your picture from the list. This will take you to the Choose a new picture for your account screen. Below the system generated thumbnail panel, click on the Browse for more pictures… link. This will open your Pictures library. Find an image you like, left click to select it, and click on Open. This image will now be the thumbnail icon for your User Account.
But selecting Manage another account you can change the pictures for other users of the computer as well.Share