I will soon be receiving a "new" (refurbished) notebook. It comes with Windows 10 Pro. I plan to run Ubuntu, but instead of throwing Windows away, I wonder if I might be able to install it as a guest system in VirtualBox. The problem, as I see it, is obtaining an .iso for the Windows installation.
How can I copy the Windows installation/recovery file/partition (whatever the heck it is!) that comes with the new computer, so I can install it as a guest?