Choose and click Browse to find your .key file on your local drive.

Navigate to the node and select Licenses . Click Add license key .

: Input your alphanumeric 20-digit activation code and a valid corporate email address.

Choose (this option appears if internet connectivity is restricted or disabled).

You will receive a .zip archive containing the .key file and a CompatibilityList.txt explaining which products the key supports. 2. Update Locally on a Single Machine

If you are seeing a specific error code or are unsure if your license allows for an automatic update,

For Windows:

: Unlike standard consumer versions that require an activation code and a server handshake, a key file contains all necessary license metadata internally. Versatile Management : You can deploy these files via the Kaspersky Security Center (KSC)

By proactively managing your key files, you prevent service disruptions and ensure continuous, robust protection against threats.