Ok, I renewed subscription and a message kept appearing saying I was not protected. So, reinstalled F secure having removed previous version but new message appeared saying there is no internet connection (there is) b. Not sure where I went wrong.
Do you talk about F-Secure AV/IS/SAFE or indeed about 'F-Secure Freedome'?
With any of meanings -> you able to try next steps:
--> Re-check that "F-Secure" uninstalled (based on system Control Panel - list of installed software);
--> If it listed -> uninstall by default steps;
--> Restart system;
--> Then you able try to use F-Secure Uninstallation Tool:
It also valid for Windows 10;
--> And try to install F-Secure solution else one time;
// F-Secure Uninstall Tool able to uninstall also other F-Secure solutions (if it installed):
So - good to be sure - that all "license-subscriptions"-keys/credentials is known for you (if there installed Freedome or so --> but your stuck about F-Secure SAFE/IS);
You able to try this steps... as first try (what if it can be useful); If not - there can be another suggestions.