Renew Kaspersky license file
Please download the following file from CA FTP：
Open the Kaspersky Anti-Virus application
Open the Kaspersky Anti-Virus application. Please click “License” in the lower right corner.
Remove expiring license
Please click on the red “X” button to remove the expiring license.
Activate the software with a commercial license
Please click “Activate with a commercial license” and select Launch with Key File.
Activate with a key file
Click “Browse” and select the file with .key extension.
Click “Next” to finish.