How to enable automatic logon for Windows 7 and Vista

Description
Auto login in Windows 7 & Windows Server 2008 allows a user to logon direct into his Windows desktop without having to enter the password.
However, this can be possible for only one user on the Server and multiple users cannot have this feature enabled.
Resolution
To enable Auto login in Windows 7 & Windows Server 2008
  1. Click Start, search for “netplwiz.exe″ and press enter.
  2. Disable -Users must enter a user name and password to use this computer-