How do I install/run portable virtualbox 7 when the host machine (being used for testing) already has virtualbox (normally) installed?

[wb0gaz]

I wish to prepare a USB drive with a copy of portable virtualbox 7.

On initial start, it appears that portable virtualbox 7 chooses to run the copy of virtualbox (6.x) already installed on this (Windows 10) machine.

Is there a way to tell portable virtualbox 7 to ignore what is already installed on this machine?

Also, it is not known if a future machine on which the USB drive would be running (with portable virtual box 7) might also have a copy of virtualbox normally installed (that can't be foreseen.)

Thanks for any advice on this!