How do I get rid of NotePad 2003 from my system. Even removing in Control Panel it says it isn't there and I can't stop it controlling Access to 2011 files.
Try using Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.
After that, try running AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system.