Follow the steps below to Display it on your PC:
1. Click Start, then click Run.. and type regedit, and then click OK.
This opens Registry Editor Window.
2. From the left-pane of the Registry Editor go to the following Registry Key
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsNTCurrentVersionWinLogon
3. In the right-pane, Create New String Value with the Value name LegalNoticeCaption and edit its ‘Value data’ with the caption you want to set for your dialog box.
4. Now, Create another String Value with the Value name LegalNoticeText and edit the Value data with the text message you want to display in the dialog box.
5. Close the Registry Editor and Restart your PC for the changes to take effect.
That’s it!! From now onwards during the system startup you can see a dialog box displaying the message you have previously set.
Note: To disable the legal notice dialog box and retrieve your previous settings, either set the value data of both the Strings created to blank/null (preferable) or you can just delete them.
Hope this helps…
Try it yourself and let me know if you face any difficulty.
@anonymous Type in your message under the 'Value data' field of the string value "LegalNoticeText" (check 4th step above)
If you leave that blank than you won't be getting any message.
I have done this but I still get the dialog box with nothing in it.