Have you ever used the right-click “Open With” feature in Finder when opening a specific type of file? While this feature is usually pretty handy, if you install and remove applications on a regular basis there may still be traces of those applications that have been long-gone from your Mac. In this how-to, we’ll show how you can rebuild this list so it remains up-to-date and only shows what you currently have on your hard drive.
Basically you open a terminal and run the following command…And wait.
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user