Photoshop Elements 11 won't install

Hello. I've recently had to re-download Photoshop Elements (and Premiere) 11 following a re-installation of Windows 10. I originally bought them in 2013 and have re-installed on one previous occasion but that was under Windows 8.1. When I hit the exe file I get an error message that says "The file archive part of Adobe Photoshop Elements 11 is missing. You need all parts in the same folder in order to extract Adobe Photoshop Elements 11. Please download all parts."

But there are no other parts to download as far as I can see on my account page where the downloads are listed.

What do I do next? (The online chat help tells me they can't help me because PE 11 is too old.)

thanks!