Before diving into the "new" aspect, let’s clarify the terminology. Unlike consumer antivirus products that often use simple alphanumeric activation codes, Kaspersky Endpoint Security for business uses a key file (typically with a .key extension).
This file is a digitally encoded license container that holds:
Why a file instead of just a code? Because large enterprises manage hundreds of endpoints through a central console (Kaspersky Security Center). A key file allows for silent, scripted, or remote deployment without manual entry errors.
If the GUI fails, use the kesl-cli command (Linux) or avp.com (Windows):
kesl-cli --add-key /path/to/your/newkey.key
This forces the application to accept the Kaspersky Endpoint Security key file new even when standard methods timeout. kaspersky endpoint security key file new
You will be searching for a Kaspersky Endpoint Security key file new in several common scenarios:
For standalone KES not managed by KSC:
Question: I purchased a new KES license but received no .key file. Why?
Answer: Starting with KES 12+ and newer licensing terms, Kaspersky has moved away from standalone key files. Instead, you receive an activation code. You enter this code in Kaspersky Security Center or directly in the endpoint client. The application then automatically contacts Kaspersky’s activation servers to retrieve and apply the license. If your environment is air-gapped (no internet), contact Kaspersky support to request a legacy .key file for offline activation. Before diving into the "new" aspect, let’s clarify
The process for adding a new key file Kaspersky Endpoint Security (KES) typically involves importing it into the central Administration Server
repository for network-wide deployment or applying it directly to a local instance.
1. Adding the Key to the Administration Server (Centralized)
To manage licenses for multiple devices, the key file must first be added to the Kaspersky Security Center (KSC) repository. Navigate to Repositories : In the Administration Console, open Operations right arrow right arrow Kaspersky Lab licenses Import the File and select the Select License : Browse to the file on your local machine and confirm. Automatic Deployment (Optional) : During the import, you can check the box to Automatically deploy key to managed devices Why a file instead of just a code
. This allows the server to distribute the license to clients as they connect. 2. Manual Deployment via Activation Task
If automatic deployment is not used, you must create a task to push the new key to specific workstations. Create Task : Go to the node and click Create a task Kaspersky Endpoint Security right arrow Add license key Choose the Key : Select the newly imported key from the repository. Select Devices : Define the target computers or administration groups. Reserve Key Option : You can set the new key as a reserve key
, which will automatically activate only when the current license expires. 3. Adding Key File Locally (Standalone) For individual devices not managed by a server, use the KES Web Interface or local application window. Open Licensing Section right arrow right arrow link at the bottom of the main window). Add License Add license key Activate the application Upload File from the dropdown, click , select your file, and click Key Considerations
Deploying a license key to client devices - Kaspersky Support
An old key file might be blacklisted, expired, or limited to an older version of KES (e.g., version 10 vs. version 12). A new key file ensures compatibility with the latest KES agents, patches, and security protocols. Using a deprecated key can lead to failed updates, disabled components, and vulnerability to new threat vectors.
To avoid disruptions, follow these enterprise best practices regarding your Kaspersky Endpoint Security key file new: