Copy “sudo mv /Library/Printers/hp/* $HOME/Desktop/OldHPDrivers” without the quotes and hit enter.
Now we’ll move the frameworks to this new folder:.
Open Terminal by heading to Applications -> Utilities -> Terminal.
Create a new folder on your Desktop called “OldHPDrivers”.
You may want to print these instructions or have them open on another computer as you’ll need to restart your Mac. But you need to open it to remove those frameworks… Do you see where I’m going here? So, if HP Easy Start won’t work, then it’s probably because it can’t use the frameworks that it needs to open, because they are blocked.