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I've got to have different Hardware UUID for software testing purposes. When cloning a VM in Fusion pro 8.5, the clone gets a new MAC address but the hardware UUID in system report in macOS doesn't change.

Any idea how I can assign a new UUID to virtual Mac guest OS?

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The text file that Fusion uses to assign this is editable when the VM is powered off (don't suspend, shut down the OS):

  1. Turn off VM
  2. In machine folder, change uuid.bios section in <>.vmx file (f e.g. uuid.bios = "aa aa ...").
  3. In machine folder delete .nvram file
  4. Boot VM

In "About this MAC" you must see enter image description here

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  • This doesn't seem to be the case anymore. VMware Fusion 11.5.7 generates a UUID that is then stored in nvram
    – 1.61803
    Jul 24 at 12:26

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