Follow these steps to renew F-Secure SAFE with a box code.
Log in to My F-Secure with your account username and password.
On the My F-Secure page, select Subscription in the top bar.
Under Overview, select Enter a code. The Redeem your code window opens.
Under Update your current subscription, type in your subscription code (on the F-Secure box or card), and select Continue.
Verify the subscription details and if they are correct, click Accept.
Note: The new code might change the number of devices you can protect. Also, the subscription time from the code is added to the remaining days left on your current subscription. Remaining trial days are not compensated.