I've been exhausted with the engineers calling me now and then because they forgot the password and login on their windows server 2008 R2 and Windows 7 Desktop. In the Etere Automation Environment as like this where one workstation is sert to only one login. It is best advice to edit the registry with the hack on AUTO-Login. Here below is a copy from the superuser.com website. I love to put it here on my webblog for reference. I actually search my website every now and then. I just put site:melardenio.com and then "keyword". Voila I can again read and was able to accomplish my task.
As a local administrator, tell Windows to allow admins to log on automatically.
In Regedit, browse to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon. If it is not there, create a new String Value called AutoAdminLogonSet this value to 1
Tell Windows to remember the password for logging in.
In the run box, type control userpasswords2 Ensure your domain username is in the list, if not, add it. Untick (or tick and untick): Users must enter a user name and password to use this computer. Make sure your username is selected. Click Apply.
At this point, Windows should prompt for the password that will be used.
Now head back to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon Ensure the following String Values are set, if not, set them:
DefaultUserName: Your domain username (without the domain prefix)
DefaultDomainName: Your domain
That should be it.
Note on password changes:
You will need to redo this procedure from step 2 each time you change your password. Unfortunately Windows resets the DefaultDomainName to your local machine name every time you save that dialogue, so you have to change it back manually.