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Unable to forward the USB 3.0 drive to the Windows virtual machine

APPLIES TO:
  • Parallels Desktop 10 for Mac Home Edition
  • Parallels Desktop 9 for Mac Standard Edition

Symptoms

  • If USB 3.0 drive is connected to Windows Virtual Machine, it will disappear from both Mac and Windows sides.

  • Windows cannot detect USB 3.0 external drive.

  • USB 3.0 drive does not work properly on the Windows side.

Cause

  • USB 3.0 drivers are not installed.

Resolution

  1. Make sure USB 3.0 support is enabled:
    • open virtual machine configuration
    • Go to Hardware tab > USB & Bluetooth
    • Check USB 3.0 support
  2. Download and install USB 3.0 drivers from here on the Windows side.

Check the issue. If it still persists:

  1. Create a new virtual machine and attach the existing virtual hard disk.

  2. Check the issue. If it still persists, turn on external disks feature for USB devices by doing the following:

    2.1 Make sure, Parallels Desktop is shut down.

    2.2 Open Terminal (Finder > Applications > Utilities > Terminal) and execute the following command:

    sudo chmod -R 777 /Library/Preferences/Parallels
    

    enter your password (you will not be able to see the symbols you type) and hit Enter (return).

    2.3 Open the required file executing:

    open -e /Library/Preferences/Parallels/dispatcher.desktop.xml
    

    2.4 In the opened file find the following strings:

        <UsbVirtualDisks dyn_lists="">
          <FireWire>1</FireWire>
          <Usb>0</Usb>
          <Thunderbolt>1</Thunderbolt>
          <Removable>1</Removable>
        </UsbVirtualDisks>
    

    2.5 Change <Usb>0</Usb> string to <Usb>1</Usb>:

        <UsbVirtualDisks dyn_lists="">
          <FireWire>1</FireWire>
          <Usb>1</Usb>
          <Thunderbolt>1</Thunderbolt>
          <Removable>1</Removable>
        </UsbVirtualDisks>
    

    2.6 Save file (in Finder menu bar > Files > Save) and close TextEdit.

    2.7 Get back to the Terminal and execute the following command:

    sudo chmod -R 755 /Library/Preferences/Parallels
    

    enter your password (you will not be able to see the symbols you type) and hit Enter (return).

Note: Currently, external disks speed is equivalent to USB 2.0 speed as external USB devices are connected to the USB 2.0 bus in the Guest.




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