Fault: administrator account cannot be selected for login

1、 The fault phenomenon ：

1） install Windows 7 Enterprise in the future , Cannot select... When logging in Administrator The account login .

2） Try to use Windows XP Methods , Use Ctrl+Alt+Del Key combination call up Windows Classic login interface , Invalid .

3） see “ Computer management → Local users and groups → user ”, Find out Administrator Has been disabled .

2、 The cause of the problem ：

1）Windows 7 An account will be created automatically after installation , This account has administrator rights .

2）Administrator It is disabled by default , You need to enable this user in account management to use Administrator Sign in .

3） If this Windows 7 Add fields , Can be used Administrator Sign in .