Display legal notice on startup:

Wanna make your friends afraid by displaying about there secrets while Windows start? Well you can do it pretty easily by displaying a secret message about him at system start up.
Goto Start–>Run–>Regedit

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
“legalnoticecaption”=”enter your notice caption”
“legalnoticetext”=”enter your message text here”