How do I display a message on login for Windows 8/8.1?

Solution :

Edit registry to :

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"LegalNoticeText"="Warning this is my message"
"LegalNoticeCaption"="My caption"
"DisableCAD"=dword:00000001

DisableCAD may not be needed

Infos & Debug :

• Check your different value under :

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

• GPO populates the registry under different keys :

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ legalnoticecaption legalnoticetext

• GPEDIT.MSC Settings :

  Navigate through Local Computer Policy \Computer Configuration \Windows Settings \Local Policies\Security Options On the right pane window find INTERACTIVE LOGIN: Message text for users attempting to log on type your warning away in that box.

• Reboot related issue 1 :

  gpupdate has been known to clear up policy related issues

  gpupdate /force

• Reboot related issue 2 :

  Force reboot the system "shutdown /s /t 0" then turn on

Links :

Deeper info about LegalNoticeText

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