Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for best assistance and troubleshooting: https://support-en.wd.com/app/ask
To power offG-RAID USB, press and hold the On/Offpower button until the unit shuts down. To use G-RAID USB on Windows, go to Windows Use. To use G-RAID USB on Mac and Windows together, go to Cross-Platform Use. myBayCare