So, am I right thinking I can't put the win10 upgrade on another comp?

Edit: No I'm wrong. I somehow completely missed that one question in the faq when I was reading it earlier that actually answers this exact question;

To clarify, in order to transfer your copy of Windows 10 to a new PC, assuming you have a retail license of Windows 7/8.x, you must first install Windows 7/8.x on the new PC, then perform a new upgrade on that PC. If this happens after the 1 year upgrade period is over, the Activation servers will know that your old license has already been upgraded and re-activate the new upgrade.

Will it? Will it really work? Time will tell but knowing Microsoft I've got a feeling come the end of the free upgrade period that it's going to be a bit more complicated than their activation servers simply "knowing" that your old windows 7/8 key was already upgraded and allowing windows 10 to activate.

Go to this link and read about your choices. This link should explain everything you just asked.
https://www.tenforums.com/general-dis...e-upgrade.html

cartilpone said:

Edit: No I'm wrong. I somehow completely missed that one question in the faq when I was reading it earlier that actually answers this exact question;

Will it? Will it really work? Time will tell but knowing Microsoft I've got a feeling come the end of the free upgrade period that it's going to be a bit more complicated than their activation servers simply "knowing" that your old windows 7/8 key was already upgraded and allowing windows 10 to activate.

I must agree with you. Only time will tell but I don't believe the upgrade of a new (as in not upgraded previously) computer will be free after July 28, 2016 unless you contact Microsoft and they give you a unique Product Key to activate the new computer with. For one thing, when you upgrade to Windows 10 it is not the old Windows 7 license information that is being stored on the Microsoft activation server, it is the hardware ID generated by the hardware configuration of the computer.