Issue : Enable XP & Vista auto log on
Solution :
1) Start—>Run—>Control Userpasswords2
uncheck the box ‘Users must enter a user name and password to use this computer‘.
Click Apply, Enter your default login username and password. Click OK.
2) Start—>Run—>secpol.msc
Local Policies—>Security Options—>"Interactive Logon: Do not require CTRL+ALT+DEL"—>Enable.
Local Policies—>Security Options—>"Interactive Logon: Do not require CTRL+ALT+DEL"—>Enable.
Restart your machine.
Remark : Vista Ultimate need both setp, xp and other edition of vista need only step 1).