"License problem detected" or "Invalid key file" error
Latest update: February 8, 2023
ID: 14484
You can encounter the "License problem detected" or "Invalid key file" error in a Kaspersky application even though the application was successfully activated earlier.
Cause
The issue occurs because of an error during the installation of antivirus databases.
Solution
- Download the installer:
- Remove the application. In the Saving objects window, select the License information or Subscription information checkbox. See this article for instructions.
- Restart your PC.
- Run the installation file and follow the instructions in these articles:
- Kaspersky Basic, Standard, Plus, Premium
- Kaspersky Internet Security
- Kaspersky Anti-Virus
- Kaspersky Total Security
- Activate the application. For activation guides, see Online Help:
What to do if the issue persists
If the issue persists, submit a request to Kaspersky Customer Service by choosing the topic and filling out the form.