You can add a "reserve key" to KES 11. This key automatically activates once the current license expires, preventing any gap in protection.
| Error Message | Cause & Solution | | :--- | :--- | | | Typos are common. Ensure you haven't confused zeros (0) with the letter O. Verify the code matches your region. | | "License Already in Use" | The key has already been activated on the maximum number of devices allowed by your contract. You may need to remove the license from a decommissioned machine or purchase additional seats. | | "Key File Corrupted" | The .key file was modified or improperly downloaded. Re-download the file from your Kaspersky Business Hub or partner portal. | | "License Type Mismatch" | You are trying to install a license that does not match the installed product (e.g., trying to install a Kaspersky Total Security key on Endpoint Security). Ensure you have a specific Endpoint Security license . | kaspersky endpoint security 11 license key install
Add license (key file or activation code): kesl-control --add-active-key /path/to/file.key OR kesl-control --add-active-key A1A1-A1A1-A1A1-A1A1 You can add a "reserve key" to KES 11
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