New External Drive not visible in "This PC"

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  1. Posts : 4,551
    Windows 11 Pro 64-bit
       #21

    Restart your computer see if you can disconnect external HDD from Safely Remove Hardware icon.
      My Computer


  2. Posts : 114
    Windows 10 Pro
    Thread Starter
       #22

    That used to work, but now I get this popup, although all programs are closed. The Task Manager shows there's nothing running.

    New External Drive not visible in "This PC"-popup.jpg
      My Computer


  3. Posts : 4,551
    Windows 11 Pro 64-bit
       #23

    Some program have a open handle on the external HDD that can't be closed make sure antivirus program is not configured to scan the external drive see if this will resolve the issue but you will need to restart after configuring antivirus program.
      My Computer


  4. Posts : 114
    Windows 10 Pro
    Thread Starter
       #24

    My guess is that Avast is causing the problem. I see no option for excluding an external drive. I turned off Avast Shield Control and the external drive chirped a few times, but I still could not eject it via the Safely Remove Hardware tray icon. Since Quick Removal is activated for the drive, can't I just turn it off without ejecting? Can I trust Quick Removal?

    I tried one more thing: I turned off Safe Removal for the external drive, hoping I'd get an eject option when right-clicking in This PC. No joy. Isn't it weird that there is no eject option?
    Last edited by battlezone; 26 Jan 2018 at 02:31.
      My Computer


  5. Posts : 39,995
    windows 10 professional version 1607 build 14393.969 64 bit
       #25

    Find another computer and connect the external hard drive.
    Report into the thread your findings when viewing:
    a) disk management
    b) device manager > disk drives
    c) file explorer > this PC
    d) ability to properly disconnect the external hard drive.
      My Computer


  6. Posts : 114
    Windows 10 Pro
    Thread Starter
       #26

    I plugged the drive into my laptop, which is configured identically to my desktop. I got this right away:

    Windows is unable to stop the device 'USB Mass Storage Device.' Don't remove this device while it is still in use. Close any programs using this device and then remove it.

    Per the Task Manager, no program was running.

    a, b, c, d, all show identical to the desktop.

    The drive had a different drive letter when I plugged it into the laptop. It showed as F, while I assigned it Z on the desktop.
      My Computer


  7. Posts : 39,995
    windows 10 professional version 1607 build 14393.969 64 bit
       #27

    Until the problem is solved these are some options:
    1) use task manager
    2) log off
    3) shut down the computer
    4) use 3rd party software

    When Windows refuses to eject mass storage: 5 ways to safely remove a USB drive | PCWorld

    How to Fix Problem Ejecting USB Mass Storage Device| Solved
      My Computer


  8. Posts : 114
    Windows 10 Pro
    Thread Starter
       #28

    1. In the Task Manger, I do not see "." I also tried with Process Explorer.

    2. I logged out of both accounts - no go.

    3. Did it. No go.

    4. I installed USB Disk Ejector. Same popup as with Safely Remove Hardware icon.
      My Computer


  9. Posts : 39,995
    windows 10 professional version 1607 build 14393.969 64 bit
       #29

    Turning off the computer has to work as it is safe to remove the drive when the computer is off.
    With task manager > click the details tab > look for WUDFHost.exe
    It is the WUDFHost.exe that disappears and reappears each time I connect and disconnect a drive.
    See if ending this task works.
      My Computer


  10. Posts : 114
    Windows 10 Pro
    Thread Starter
       #30

    I clicked end task (WUDFHost.exe) in the admin account, but it didn't end the task. Still running.

    I also tried this, per a suggestion I read on a Microsoft help forum:

    In Disk Management, I right-clicked the drive and changed the setting from Quick Removal to Better Performance and rebooted. Supposedly, the eject option should become available when right-clicking the drive in This PC. The eject option did not show up.

    I also uninstalled Avast to see if that would help. It didn't. I still get the "a program is still using" popup.

    Nobody has yet commented on the default Quick Removal setting. Can it be trusted or not?
    Last edited by battlezone; 26 Jan 2018 at 17:04.
      My Computer


 

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