External drive not showing in Explorer

  1. Posts : 93

    External drive not showing in Explorer


    l have plugged a fairly new Samsung 1TB external drive into two different computers but it doesn’t show up in File Explorer or Disk Management. The blue indicator is lit on the drive.

    When I click the icon on the status bar, it shows Eject Samsung M3 Portable.

    What else is worth trying, please?
      My Computers

  2. Posts : 16,941
    Windows 10 Home x64 Version 22H2 Build 19045.4170


    Run Disk management - C:\Windows\System32\diskmgmt.msc - you'll have to give admin permission to proceed.

    The new disk will probably appear there. Right click on its entry and select Add drive letter / Change drive letter {I cannot remember exactly which words are used for a new disk} then give it a specific drive letter.

    If you are at all unsure then post a screenshot of the Disk mgmt window. See the last of my links below [the others are just for future reference as the last covers everything you need on this particular occasion].
    Take screenshot- TenForumsTutorials
    Take a Screen Snip with Snip and Sketch - TenForumsTutorials
    How to Upload and Post Screenshots and Files - TenForumsTutorials
    How to Remove a Screenshot or Image from TenForums.com Post - TenForumsTutorials

    Disk Management - How to Post a Screenshot of - TenForumsTutorials

    Last edited by Try3; 28 Mar 2020 at 10:16.
      My Computer

  3. Posts : 93
    Thread Starter

    Thank you. I hope I've got the attachment right!
    Attached Thumbnails Attached Thumbnails External drive not showing in Explorer-diskman.png  
      My Computers

  4. Posts : 30,185
    Windows 11 Pro x64 Version 23H2

    Is Disk 1 your 1TB external or is this another drive you can identify within your system?

    Interesting that most partitions do not have drive letters. Some shouldn't but items like that 457GB on disk 0 would normally.

    I see the word Bootcamp and the system manufacture as iMac. Are you booting between OS x and Win 10?

    A couple of questions assuming Disk 1 is your missing external, if not just ignore.

    If Disk 1 is your missing external were you setting it up as a some sort of boot disk? Maybe you could tell us what your plans are for this external?

    Is there any data on Disk 1, assuming it is your missing external?
      My Computer

  5. Posts : 16,941
    Windows 10 Home x64 Version 22H2 Build 19045.4170

    I seem to have missed some words in your original post, "it doesn’t show up in ... Disk Management". Sorry.

    The two drives shown appear to be internal drives, each of which is 1TB. So, as you say, the new external drive is not shown.
    - I know nothing about Apple computers. I believe that the drive label Bootcamp is a term used by Apple.

    From what you have already said, your Disk mgmt looks the same whether your new external HDD is connected or not. If that is the case then look at Device manager [right-click on the Start button & select it] and
    1 Check if the drive is showing in the section Disk drives.
    2 Check if there are any warning triangles, any section called Other devices or any entries anywhere called Unknown device.
    External drive not showing in Explorer-device-manager-warning-signs-icons-other-devices.png

    You have probably already checked that the connection cable is OK.
    You might well have swapped the cable around with one from another drive that does show up correctly.
    You have probably already connected something else into the same USB connection to make sure that it is working correctly.

    If the checks Ken & are suggest do not fix the problem then, as it is "fairly new" by which I understand that it is less than a year old, go back to the seller** and demand that they fix it or replace it. If it is older then check your paperwork to see what the Samsung-Seagate warranty is and contact them.
    ** If you bought it from Amazon or "Fulfilled by Amazon" then they are pretty good about these things. Search for equivalent drives before contacting them so that if they offer you a refund or replacement you can choose which is better.

      My Computer

  6. Posts : 93
    Thread Starter

    I think I've found the problem. I decided to switch from Bootcamp onto Mac and the external drive shows up as it must have been formatted to be used there for backups.

    Just for info, a few years ago when we needed a new machine, we decided to go for an iMac. mainly because we have iPads, iPhones, etc. Having been 'brought up' on Windows, I really cannot take to the Mac. Office for Mac was hopeless for all my customised templates, etc, so I partitioned the drive and got back to Windows. I very rarely switch to the Mac partition so I'd forgotten that the Samsung external drive had been fixed as a Mac format.

    I guess I'll have to erase the stuff on the Samsung and format it as ex-Fat so that it will be more useful to me on Windows.

    Thanks for all the help and advice. Much appreciated.
      My Computers

  7. Posts : 16,941
    Windows 10 Home x64 Version 22H2 Build 19045.4170

    janey6 said:
    ... format it as ex-Fat so that it will be more useful to me on Windows ...
    If it is any encouragement, I have an external drive formatted as exFat and it has been no bother at all in Windows since I learnt that I cannot disconnect & reconnect it while the computer is asleep.
    - In your case that might also mean ... when you switch to the other operating system.
    - So I'd expect you to have no problems as long as you disconnect & reconnect it while the computer is running in one of your OSes. And then reconnect again if you then switch OSes.
    - Before I learnt not to remove it whilst asleep, the problem I had was that it kept getting folder corruption errors when copying to it later on.

      My Computer

  8. Posts : 30,185
    Windows 11 Pro x64 Version 23H2

    Glad you found issue.

    I might still dig deeper into what all the different partitions are that did show up in your Disk Management shot.
      My Computer


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