|Product:||F-PROT Antivirus for Windows|
|You receive a "Subscription key is missing" error message|
If you try to download updates, you may receive the following error message:
"Subscription key is missing"
This issue may occur if the Subscription Key is missing in the program. Please note that F-PROT Antivirus requires a Subscription Key to be able download or install updates.
For registered users, if you did not note your subscription key during download, you may obtain your subscription key either within the program or in the Customer Zone.
For detailed instructions on how to obtain your subscription and enter it in the program, see How to obtain your new Subscription Key and enter it into the program.
For detailed instructions on how to get a trial subscription key, see How to get a trial subscription within the program.
Whenever you are ready to subscribe to a registered version, please see How do I upgrade from trial to the registered version of F-PROT Antivirus for Windows?