Switch login screens on the fly

[Maelstorm]

I have figured out a method to switch login screens on the fly without using LoginStudio. This is a registry hack.

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin]
"Text"="Enable Custom Logon Screen"
"Type"="checkbox"
"CheckedValue"="logonuiX.exe"
"DefaultValue"="logonui.exe"
"UncheckedValue"="logonui.exe"
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"

The above registry code will add an option in Tools -> Folder Options called Enable Custom Logon Screen. And furthermore, if you want to switch between more than just one custom login screen and the original, you can do this:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin]
"Text"="Enable Custom Logon Screen"
"Type"="group"
"Bitmap"="SHELL32.DLL,274"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin\ScreenDefault]
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"
"Text"="Default Windows Logon Screen"
"Type"="radio"
"CheckedValue"="logonui.exe"
"DefaultValue"="logonui.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin\ScreenA]
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"
"Text"="Logon Screen A"
"Type"="radio"
"CheckedValue"="logonuiA.exe"
"DefaultValue"="logonui.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin\ScreenB]
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"
"Text"="Logon Screen B"
"Type"="radio"
"CheckedValue"="logonuiB.exe"
"DefaultValue"="logonui.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin\ScreenC]
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"
"Text"="Logon Screen C"
"Type"="radio"
"CheckedValue"="logonuiC.exe"
"DefaultValue"="logonui.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin\ScreenD]
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"
"Text"="Logon Screen D"
"Type"="radio"
"CheckedValue"="logonuiD.exe"
"DefaultValue"="logonui.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin\ScreenE]
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"
"Text"="Logon Screen E"
"Type"="radio"
"CheckedValue"="logonuiE.exe"
"DefaultValue"="logonui.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System\GUILogin\ScreenF]
"HKeyRoot"=dword:80000002
"RegPath"="Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon"
"ValueName"="UIHost"
"Text"="Logon Screen F"
"Type"="radio"
"CheckedValue"="logonuiF.exe"
"DefaultValue"="logonui.exe"

Note that I also have a new tree called System. The registry code for this is as follows:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\System]
"Bitmap"="SHELL32.DLL,22"
"Text"="System Settings"
"Type"="group"

Hope this helps someone.

[HyperHacker]

Awesome! Is there a similar method for boot screens? (Or can Windows replace its own kernel on-disk? )