7 months ago - AndrewT - Direct link
It's been confirmed that the launcher will no longer work on WIndows 7, and never will any more.

In order to run an older version of the launcher, the easiest way to do it is to rename the folder of the version you want to keep (in this case %LocalAppData%\Programs\Paradox Interactive\launcher-v2.2023.13.1) to instead be named launcher-v2.2099.99. This will cause it to be chosen as the latest version. Launcher updates should subsequently fail - Which is probably what you want.

Good luck!