1.Unregister (this is crucial if you want to register again after a new installation).
2.Remove the program (Titlevision V4.0) via the Control Panel.
3.Delete these folders and everything in them:
XP:
C:\Documents and Settings\All Users\Application Data\Titlevision 2011
C:\Documents and Settings\[Username]\Application Data\Titlevision 2011
C:\Documents and Settings\All Users\Start Menu\Programs\Titlevision Sub Machine
C:\Documents and Settings\[Username]\My Documents\Titlevision
Windows Vista, Win 7, Win 8, Win 10:
C:\Users\All Users\Titlevision 2011
C:\Users\[Username]\Appdata\Roaming\TitleVision 2011
C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Titlevision Sub Machine
C:\Users\[Username]\Documents\Titlevision
Some of these paths may be invisible if you haven't allowed windows to show hidden folders
If you just want to uninstall in order to install again, it may be enough just to reset factory settings.