A key file is a file with the .key extension that you receive from Kaspersky. Key files are intended to add a license key for activating the application.
You receive a key file at the email address that you provided when you bought Kaspersky Endpoint Security or ordered the trial version of Kaspersky Endpoint Security.
You do not need to connect to Kaspersky activation servers in order to activate the application with a key file.
You can restore a key file if it has been accidentally deleted. You may need a key file to register a Kaspersky CompanyAccount, for example.
To restore your key file, perform any of the following actions: