Windows 7 and Vista – Adding a custom picture to logon screen

 

In Windows 7 and Windows Vista, the default user account pictures are stored in the following location:

C:\ProgramData\Microsoft\User Account Pictures\Default Pictures

You can add your custom pictures to the above location so that the user accounts applet lists them automatically.
Ensure that the dimension of the picture is 128×128 pixels, and it’s a Bitmap image (.bmp).

If you find a picture on the internet that you want to use for your account, save the picture locally and crop the image (to 128×128 px) using any image editor of your choice.