Tips & Tricks
Stop programs appearing on the ‘Open with’ list when you’re trying to open an unrecognised file.
Open Regedit and browse to HKEY_ CLASSES_ROOT\Applications, and you’ll see a list of programs that are installed on your PC as subkeys in the left-hand pane. To remove an unwanted program from this list, select it and right-click in the right hand pane.
Choose ‘New > String value’. Name it ‘NoOpenWith’. Repeat for each application that you want to remove from this list.