Disable Login screen in Vista

To disable login screen that asks the username password in vista (the welcome screen) do the following.

Goto Start->Run or Press 'Win+R'
In the dialog that opens type the following
netplwiz




















Uncheck the Users must enter a username and password to use this computer option
Click Apply, OK
If you are asked for a password, enter it, else leave it blank.

Welcome screen is disabled!