For create a logon message
By- Sdpw alamin
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Run > regedit >HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT >CurrentVarsion >Winlogon >Right side >LegalNoticeCaption(Write here Massege Titel & press ok ) >LegalNoticeText(Write here your full Massege & press ok)>Close reg edit window and restart.
For delete logon massage:
Run > regedit >HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT >CurrentVarsion >Winlogon >Right side >LegalNoticeCaption(Delete here Massege Titel & press ok ) >LegalNoticeText(Delete here your full Massege & press ok)>Close reg edit window and restart.