In these forums, it is very easy to find many users submitting questions about how to deactivate one computer and then activate another, but there are very, very few straight answers, if any. The suggestion that "Deactivate" should be selected from the "Help" menu seems no longer to be applicable, as there is no "Deactivate" option displayed in my Photoshop CC 14.2.1 "Help" menu.
Why not post up high and easy to find, "Deactivate: Here's how"?
For what it's worth, I sympathize.
An Adobe Help doc for activation procedures is at Activation & Deactivation Help
But I don't see that many people pointing to it in these forums - or even much evidence that people are aware of it.