Follow the procedure below to uninstall all of the installed on-screen manuals from your computer.
Before uninstalling the on-screen manuals, exit all on-screen manuals that are opening.
Click Start > All Programs > Canon XXX Manual (where "XXX" is your machine's name) > Uninstall.
Click OK when the confirmation message appears.
NoteWhen the message prompting you to restart your computer is displayed, click OK to restart your computer.