Acrobat 8 fails to recognize valid license
I recently uninstalled Adobe Acrobat 8.1.3 from an old laptop. During the uninstall, I made sure to deactivate my license when that option was presented.
Now, I want to install Acrobat 8 on a new machine. I went to this page: Download Acrobat 8 and Acrobat 9 and downloaded Acrobat 8 pro. On the new machine, I successfully installed Acrobat 8. However, when I went to activate my previous license, it gave me an error saying that I was using an invalid license.
I chatted with customer support, and they verified that I had a valid license that was currently unused by any machine. Using the trial version, I also verified that Acrobat was fully functional.
Both the old and new laptops are running Windows 10 with all of the most recent updates downloaded and installed.
Why is Acrobat refusing to recognize my valid license key?