I have paid for F_Secure subscription for several years and all has worked fine. After renewing my subscription recently, my Windows XP computer didn't recognise the subscription. I uninstalled F-Secure and deleted my licence intending to reinstall it. However, I got a message that they no longer support Windows XP and haven't done so for some time. My F-Secure has been working fine until my renewal but after contacting F-Secure I apparantly can't use it anymore on XP.
As I want internet security for all my computers including XP, Vista and Windows 10 I have had a full refund and moved away from F-Secure.
I am disappointed that F-Secure have taken this stance with XP and won't be using them anymore.