Is there an upgrade path from F-Secure Internet Security to F-Secure Safe? If so, what are the details?
Sorry for my reply. I'm only F-Secure user (so, only unofficial suggestions);
I think that answer is "not". But does your ask with certain background?
Did you receive any offers about upgrade subscription from F-Secure IS to F-Secure SAFE(?!); Or something else?
Generally, this solutions with different types of subscription; And installing F-Secure SAFE should replace F-Secure IS installation; Additionally, required certain account/subscription for F-Secure SAFE.
Recently there was next topic:
where discussed partly this concern. With next points:
--> F-Secure SAFE installation-process with potential sidegrade/autoremoval for previous solution;
--> your settings will be cleaned/cleared (and things like your white/black exclusions lists).
sorry if I understand your concern wrongly. good if you will clarify this.