Here is a cool trick to show a legal notice at system start up like ” You are using pirated version of Windows”. Just go to the Registory editor ( Start Menu>> Run>> Regidit) and then traverse the following registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system

and change the “LegalNoticeText” & “LegalNoticeCaption”  boxes to type any text warning or message to show while starting.