Drag and drop in finder is not working


How to fix if Drag and drop in finder is not working?
I am using Mac OS X 10.12. Now I actually can copy and paste with my keyboard, but dragging and dropping files within either finder or finder and other applications doesn’t work. Logging out then in again would solve the issue, but I face the same problem again after a couple of day working. This is really inconvenient. Does anyone know how to fix?
Thanks in advance,


  1. LaunchActivity Monitor
  2. Find pboard process and quit the process.
  3. Then restart applications where you would like to copy from or paste into.
  4. Next, Relaunch (through Option-Command-Escape) Finder to fix dragging and dropping.

The above really works on the others.