Here’s a link to the WD security download for Mac: I found this post on the WD forums, which appears to be discussing the same issue with the Passport not unlocking. Thank you.Have you tried updating the hard drive’s software? If you have any other solution or suggestion let me know through the comments section below. I hope the above solution will surely help to fix the External hard drive issue. Delete the partition and connect back to MacBook Pro. Connect your Seagate external drive or WD passport to a Windows computer.Once it finished, go to check now your Hard drive appears or not.Now select your External Hard Drive and give the First-Aid option at the top.From the Apple logo select System Preferences.The First-Aid option helps solve the problem with the Startup issue, External drive problem, help repair corrupted files. Restart your computer and check the issue. Install Microsoft NTFS for Mac by iBoysoft. Sometimes this issue might happen because of the unsupported drive format.

Run Kext 2.6.1 and restart your Mac machine. Install and run Onyx (maintenance freeware) or

Plug the external drive only into the USB port.

Wait 30 seconds or 5 minutes then plug it back in.Solution 7: Plug and Unplug the USB connector If the drive greyed Out? Select the drive.Go to the Finder window and view below the favorite list.Solution 6: Select the drive from the Favorite listĭrive not showing up in Finder but visible in Disk Utility? Type the external drive path that appears under Disk Utility.Then, Restart your Mac and connect the external drive.Do the proper Eject from the Finder window list.Connect another external drive or Pen drive to the Mac.If your external USB drive faded/grayed out and unmounted? Solution 4: Check with Another drive with your MAC If you connecting your external hard drive with Mac using USB Hub, check the USB hub for any damage or any loose connection. It will find and correct some minor errors.Tap on Verify Disc to confirm the action.Then select Disk Utility and choose the external drive from the left sidebar.Launch Finder and tap on Go -> Utility.Then tap on the General tab and select External disks from Show these items on the desktop option.Solution 10: Give First-Aid to your MAC.Solution 7: Plug and Unplug the USB connector.Solution 6: Select the drive from the Favorite list.Solution 4: Check with Another drive with your MAC.

Solution 1: Change Preferences Settings.

Wd my passport unlock for mac