No.1*****************************
Run control userpasswords2
Uncheck the "Users must enter a user name and password to use this computer"
press Ctrl+Shift+A
input userName,Password
No.2************************
regedit
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows NT/Current Version/Winlogon
set
AutoAdminLogon=1
DefaultUserName=$user
Defaultpassword=$pass
DefaultDomainName=$domain
