How to delete App (files with cross sign) that cant delete from Application on Mac Due to my new Mac running hot overheating issue, I found an extension app called "Turbo Boost Switcher" to see if I can control heat generation. 

However, since it can't it run properly, I want to delete it after. Then I realized, I cant remove it from the launchpad nor from the Application folder.

When I try to search what are leftover in the computer, I found that the files were all shown with a prohibitory sign as shown. 



How can I locate and trash these icons?
The prohibitory symbol means the application will not run on your machine.

I'd recommend either user128733 or CousinCocaine approach as seen here:

How to remove an icon from launchpad that does not appear in the Finder?

Application cleaner tend to be OK.  FYI: General mac cleaners are to be avoided.

https://nektony.com/how-to/delete-apps-from-launchpad