Same experience and feelings here. Just turned my system into Windows 10. No compatibility issues were reported by MS Windows tools. I remember from upgrade from W7 to W8 several warnings about compatibilty were issued on same system, but not this time After upgrade to W10 everything works great, except SSR 2013. Now I need SSR 2013 to restoreit to W8.1 state or work around with a cold backup which probably(!) will work. What a waste of time.
Just executed live-update just to be sure the situation has not been changed, but it it has not.
Symantec should come with a quick fix, otherwise it is hard to recommend Symantec to anyone. Despite their good products they seem not to be reliable in continuation.