How do you reset copy and paste on a Mac?

Here’s how:

1. Quit all the apps where copy/paste doesn’t work properly.
2. Open Finder > Applications > Utilities > look for Activity Monitor. …
3. Type pboard in the Activity Monitor search bar.
4. Highlight the pboard process — press the X button in the right upper corner of the Activity Monitor window.
5. Click the Force Quit button.