Open Run & type regedit
Navigate to HKEY_LOCAL_MACHINESOFTWAREMicrosoftWi ndows NTCurrentVersionWinlogon
Modify the key legalnoticecaption with what you want to name the window.
Modify the key legalnoticetext with what you want the window to say.
Restart
Navigate to HKEY_LOCAL_MACHINESOFTWAREMicrosoftWi ndows NTCurrentVersionWinlogon
Modify the key legalnoticecaption with what you want to name the window.
Modify the key legalnoticetext with what you want the window to say.
Restart