How do you delete app from macbook that won't delete from Launchpad

If you've deleted the app but the icon remains in Launchpad or the Dock, this is just an indexing issue—not a failed deletion. Here's how to delete app from macbook:

To remove a lingering Launchpad icon:

• Open Launchpad, hold the Option (⌥) key, and click the X that appears

To remove a lingering Dock icon:

• Hover over the icon, hold until a menu appears, then select Options → Remove from Dock

To force a full refresh (if icons still won't go away):

• Open Activity Monitor (search in Spotlight with Cmd+Space)
• Find Dock in the process list
• Select it and click the Stop (X) button to force it to restart

However, before moving an app to the Trash, you need to make sure it's not running in the background. If an app is active, macOS will often lock its files to prevent them from being deleted while in use. 

How to delete app from macbook? Dragging an app to the Trash removes the program, but it often leaves behind small files like settings and caches. Since you cannot use dedicated cleaner apps, you can safely ignore these leftovers, as they usually take up very little space and won't affect your computer's performance.