Why does the [OLD] F-Secure Internet Security or Anti-Virus showing "license is expired"?

My [OLD] F-Secure Internet Security / Anti-Virus showing "license is expired", why is that so?

There can be several reasons for this message.

The subscription key has expired, if that is case, then you need to renew your [OLD] F-Secure Internet Security / F-Secure Anti-Virus program as explained here.
The subscription was used several times on the same device.
The subscription is in use with some other device.
The Windows system was restored.
The key has been locked because it has transferred the license time to another key.

To use your valid [OLD] F-Secure Internet Security / F-Secure Anti-Virus subscription key in your program, do the following:

Open [OLD] F-Secure Internet Security / F-Secure Anti-Virus
Click on the Renew now button from the main page of the program
Insert your [OLD] F-Secure Internet Security / F-Secure Anti-virus subscription key (xxxx-xxxx-xxxx-xxxx-xxxx)
Click Continue

If this doesn't fix the issue:

Uninstall [OLD] F-Secure Internet Security / Anti-Virus using the Uninstallation tool
Restart the computer
Download the program Internet Security or Anti-Virus
Start the installation
Enter your latest subscription key (xxxx-xxxx-xxxx-xxxx-xxxx)
Click Use license again, If you receive a message that all the licenses are in use

Note: If you see other error message regarding the license activation, contact F-Secure support for further assistance.

Article no: 000001416