I recently installed a fresh new copy of Windows 7 Pro 64 bit on 5 laptops. Each have 4 GB of ram. With each laptop I removed the temporary user account created in setup, in computer management. I also deleted the profile folder. Then I reset the password of the built-in Administrator local account. Then I joined the laptops to the domain. But when I logged out and attempted to log in again with the built-in local administrator account and it failed. I also tried the domain administrator account and it failed. I tried with the computer name\username and domain\username and still failed. The message I got when I used the local built-in administrator credentials was 'Your account has been disabled. Please see your system administrator.' The message I got when I used the domain administrator credentials was 'wrong password and wrong username.' Please help me to rectify this problem. Thanks.