Unable to find the parallels driver for usb devices error message

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Symptoms

On Parallels virtual machine start you can see the following error message:

Unable to find the parallels driver for USB devices

Cause

Parallels .kexts (drivers) can not be loaded because of wrong Mac permissions.

Resolution

  1. Open Terminal.app on your Mac (Applications/Utilities/Terminal)

  2. Paste the command as is into Terminal and hit return (you will be prompted to put your Mac password):

    sudo chown root:admin /
    
  3. Once you have run this command - restart your Mac
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