#1872·VeraCrypt

Cannot eject USB stick after unmounting volume

Author: malcolm-jonesCreated Sep 12, 2026Updated Sep 12, 2026
Labelsbug

After unmounting a volume (stored on a USB stick), disk eject fails because of a dissenting FUSE-T process.

Expected behavior

After unmounting all volumes on a USB stick, the disk can be ejected without having to manually kill any processes.

Observed behavior

Attempted to eject and got error:

Unmount of disk4 failed: at least one volume could not be unmounted
Unmount was dissented by PID 9572 (/Library/Application Support/fuse-t/bin/go-nfsv4-1.2.7)
Dissenter parent PPID 1 (/sbin/launchd)

Steps to reproduce

  1. Insert USB stick (file system: Windows_NTFS)
  2. Mount volume stored on USB stick through GUI
  3. Unmount volume through GUI
  4. Attempt to eject usb stick in terminal (diskutil eject)

Your Environment

VeraCrypt version: 1.26.29 (FUSE-T build)

FUSE-T version: 1.2.7

Operating system and version: macOS Tahoe 26.5

System type: M2