I am running photoshop 2018 on Windows 7 NOT CONNECTED TO THE INTERNET - "trial expired"

Photoshop CC 2018 Trial

Windows 7 64-bit

not connected to the internet

monitor is Wacom Cintiq 24HD

Creative Cloud subscription

I need this set up because Windows 10 won't support my very expensive Cintiq 24HD.

Photoshop 2018 is the last version of Photoshop that runs on Windows 7.

PHOTOSHOP 18 tells me my "trial has expired." Buttons: "Join Now" and "License this Software"

My Creative Cloud subscription covers my use of Photoshop 2018

I click "License this Software"

Result: Internet Connection Required for Subscriptions

I  connect to the internet and try to log into my Creative Cloud account.

Adobe web site refuses to open because my browser is "out of date". Well, I can't upgrade my browser because I'm still on Windows 7.

So am I supposed to send a perfectly good computer and a very expensive and perfectly functioning monitor to the junkyard because Photoshop 2018 - which I pay to use and works fine on this set up - refuses to license itself?