I try in vain to download Speedernet Sphere but an error message appears at the end of the download: api-ms-win-crt-runtime-l1-1-0.dll. I updated Window 7 as it was asked but without results. What should I do?
This error message shows that there is a missing dll (dynamic link library) on your Windows.
I suggest you follow this tutorial to solve the problem of installing the application on your computer: https://helpx.adobe.com/en/download-install/kb/error_on_launch.html
Once you have completed this step, restart your computer and try to install Sphere again.