Logon user into Windows Server 2008 R2 automatically

To bypass log on screen in Microsoft Windows 2008 R2, run the following .reg file:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"AutoAdminLogon"="1"
"DefaultUserName"="YourUserName"
"DefaultPassword"="YourPassword"


You must change YourUserName to your desired user name, and YourPassword to corresponding password.

To import .reg file use:
regedit.exe /s filename.reg

This will import registry values without confirm dialog box. More on importing .reg.

Source taken and more options / registry values: Automatic Logon from windowsnetworking.com

Tested on Microsoft Windows 2008 R2 (Datacenter and Webserver editions).