While installing windows xp,vista or 7 it asks to enter a user name and password .Many of us give a password of our choice .Some of us may feel vexed entering the password again n again when there is no important data.To overcome this after logging in type "control userpasswords2"
without quotes .Now uncheck the box "Users must enter a user name and password to use this computer", and then press Apply. Enter the right username and password in the boxes shown. Press OK.
now reboot the computer voila ur computer starts of automatically
