I would right click a SVG file to try associate Inkscape via the routine Open With... Choose Default Program. Inkscape was no longer in the presented list. Also navigating to the inkscape.exe file and selecting it, was no use. Inkscape would still not associate with SVG. Also trying through the Configuration Panel didn't work.
Also, trying again after rebooting the computer, didn't work.
Typical thing is that SVGZ file are still associated with Inkscape like they where before. Notably, I am not having issues starting up Inkscape directly from the executable. And I can still use it to edit SVG files. It's just an annoyance to have to use a work about. Also I feel not qualified to tell whether it's a bug or not.
I have posted on the Inkscape forum, where they recommended that I contact the developers through the mailing list. Below a link to my first relevant post on that forum.
Hopefully you can help me out.
Regards,
William Berzoff