1. Quit Box Drive
  2. Open a Terminal window and run the following command: 
    fileproviderctl domain remove -A com.box.desktop.boxfileprovider; defaults delete com.box.desktop; rm -rf ~/Library/Application\ Support/Box/Box

    This command will:

    • Archive all files that are not synced (not uploaded to Box) from "~/Library/CloudStorage/Box-Box" and move it to a new folder at "~/Box-Box (Archive)

      Note

      If you already have a "~/Box-Box (Archive)" folder from a previous manual reset, the folder will be named "~/Box-Box (Archive) 2", or if that name is already taken, "~/Box-Box (Archive) 3", and so on.

    • Exclude from the above archive files that are “up-to-date” or synced on Box
    • Re-create the parent hierarchy of the archived files
  3. While still in the Terminal window, now run the uninstaller script:
    • Type the following and press Enter: 
      /Library/Application\ Support/Box/uninstall_box_drive
You do not see your password as you enter it. Just press ENTER when have finished typing it in.
 
Lastly, you may reinstall Box Drive here.
 
Hope it helps!