Windows 10: Problems with USB SCSI Mass Storage Device

Discus and support Problems with USB SCSI Mass Storage Device in Windows 10 Drivers and Hardware to solve the problem; Everytime my Seagate Expansion Portable Drive is plugged into my PC (Windows 10 64bit), Window's Event Viewer repeatedly reports warning messages:... Discussion in 'Windows 10 Drivers and Hardware' started by wotg, Sep 6, 2016.

  1. wotg Win User

    Problems with USB SCSI Mass Storage Device


    Everytime my Seagate Expansion Portable Drive is plugged into my PC (Windows 10 64bit), Window's Event Viewer repeatedly reports warning messages:





    Event 129, UASPStor

    Reset to device,\Device\Raidport1, was issued




    Also, USB 3 write speed was extremely slow - it often took more then 8min to write a 5GB file into the drive. During the writing process, the writing speed cycled between 0MB/s to 90MB/s. Most of the time, the writing speed stayed at very low values, < 1MB/s.

    Device Manager reported that I have the latest UASPStor driver. If I disabled the UASPStor driver, the drive became disconnected.

    If I plugged in the Seagate drive into a Win 7 machine, it worked perfectly well.

    Can anyone help me to solve the problem?

    :)
     
    wotg, Sep 6, 2016
    #1
  2. KevH123 Win User

    how to change "USB attached SCSI mass storage device" to "USB mass storage device"

    Hi there:

    I have a Seagate USB portable drive and I mainly use it to connect to my ASUS Oplay! media player to watch the content on TV.

    This device use to be an USB mass storage device.

    Recently, I noticed whenever I eject my seagte portable drive, the device is showing as ""USB attached SCSI mass storage device" instead of a regular "USB mass storage device". This is when my media player stopped recognising the portable drive (showing
    the device is not supported). The portable drive works fine on my Windows 10 PC, just not recognising by my media player anymore.

    Wondering if anyone can point out how I can restore my portable hard drive back to a generic USB mass storage device instead of being a "USB attached SCSI mass storage device".

    Thank you.
     
    KevH123, Sep 6, 2016
    #2
  3. slance310 Win User
    USB Attached SCSI Mass Storage Device, Code: 19

    Hi,

    Does this happen after a Restart, a Shutdown, or both...

    Or does just ejecting\unplugging the device cause it ?
     
    slance310, Sep 6, 2016
    #3
  4. Steve C Win User

    Problems with USB SCSI Mass Storage Device

    When that drive is connected, locate it in Device Manager and search for an updated driver.
     
    Steve C, Sep 6, 2016
    #4
  5. lx07 Win User
    I had to give up on one of my external USB3 drives. It worked on Windows 7, and still works on OSX. From the research I did the reason is that up until Windows 7 Intel made the UAS drivers. In 10 they are made by MS and don't work quite the same.so some drives just don't work - it doesn't seem to be one specific manufacturer - see

    Can anyone use USB attached SCSI in 10? - Windows 10 Forums
    External Hard drive not accessible... - Windows 10 Forums

    I tried forcing the Windows 7 Intel drivers to install (you need to update the inf files as described here) but it still didn't work (although it did on Windows 8.1).

    The only solution I could find was to use a different enclosure. I guess a SATA --> USB 3 cable would also work.
     
    lx07, Sep 6, 2016
    #5
  6. wotg Win User
     
    wotg, Apr 5, 2018
    #6
Thema:

Problems with USB SCSI Mass Storage Device

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