I continually have a pop up advert inviting me to renew my F-Secure Licence that I do not require.
How do I remove it
I no longer wish to use F-Secure
OK, then I think your only options are to put up with the pop up until the end of the subscription, or uninstall the product.
May I ask why you don't wish to continue using F-Secure? Is there a problem, that we could perhaps offer some help with?