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

21 users found this article helpful

Symptoms

Cause

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.

Was this article helpful?

Tell us how we can improve it.