You may transfer the software to another computer that belongs to you.
You may not transfer the software to share licenses between computers.
In other words, you can remove the Windows 8 upgrade from an original PC and then install it on another PC, assuming the new PC has a license that qualifies it for an upgrade. Likewise, you can completely remove the PUL System Builder software from a self-built PC, a VM, or a partition and then install it in a new physical or virtual PC.
There is no limit on the number of times you may do this type of transfer, providing you follow the rules I describe later in this section. That means hobbyists who like to tinker with PCs can relax. If you buy a System Builder copy, you can move (not share) that license from an old PC to a new one.