09-15-2019, 11:33 PM
The Finder is not great at moving lots of small files, especially if you haven't rebooted for awhile.
Try relaunching the Finder via the Force Quit option. That will abort the copy-operation and if it hasn't crashed in a particularly bad way then it should simply resume in a few seconds.
Then reboot.
Then try trashing the contents of the Pictures folder again.
If it stalls after that then I'm inclined to believe that you have directory corruption or physical drive problems.
Try relaunching the Finder via the Force Quit option. That will abort the copy-operation and if it hasn't crashed in a particularly bad way then it should simply resume in a few seconds.
Then reboot.
Then try trashing the contents of the Pictures folder again.
If it stalls after that then I'm inclined to believe that you have directory corruption or physical drive problems.