How to troubleshoot activation problems in Kaspersky Endpoint Security for Windows
Show applications and versions that this article concerns
- Kaspersky Endpoint Security 12.6 for Windows (version 12.6.0.438)
- Kaspersky Endpoint Security 12.5 for Windows (version 12.5.0.539)
- Kaspersky Endpoint Security 12.4 for Windows (version 12.4.0.467)
- Kaspersky Endpoint Security 12.3 for Windows (version 12.3.0.493)
- Kaspersky Endpoint Security 12.2 for Windows (version 12.2.0.462)
- Kaspersky Endpoint Security 12.1 for Windows (version 12.1.0.506)
- Kaspersky Endpoint Security 12 for Windows (version 12.0.0.465)
- Kaspersky Endpoint Security 11.11 for Windows (version 11.11.0.452)
- Kaspersky Endpoint Security 11.10 for Windows (version 11.10.0.399)
- Kaspersky Endpoint Security 11.9 for Windows (version 11.9.0.351)
- Kaspersky Endpoint Security 11.8 for Windows (version 11.8.0.384)
- Kaspersky Endpoint Security 11.7 for Windows (version 11.7.0.669)
When activating Kaspersky Endpoint Security for Windows, you may encounter various errors and problems with the application and its components. Below is the list of the most common issues and their solutions.
Network errors
Error | Solution |
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Follow these instructions. |
Endpoint device operation errors
Error | Solution |
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Follow these instructions to fix time synchronization problems on a device with Kaspersky Endpoint Security for Windows installed.
If the active key status has changed to “Invalid activation date” after applying a license, you will not be able to restore the work of the current license on your device. In this case, you must replace the key with a new one or reinstall the operating system. |
License key file errors
Error | Solution |
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|
|
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The contents of the key file have been corrupted or modified. Reissue a key file for your license from the activation code. |
Cannot add a reserve key if the corresponding license expired before the current license. | Follow these instructions. |
Problems caused by missing license
Problem | Solution |
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|
Follow these instructions. |
Problems with activation of application components
Problem | Solution |
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| Follow these instructions. |
What to do if the issue persists
Follow the instructions below and check the result after each step:
- Restart the operating system on the device with the activation problem.
- Reissue the license key file and use the new key file for licensing.
- Reinstall Kaspersky Endpoint Security for Windows on the managed device.
- Install the latest cumulative patch.
- Install the latest version of Kaspersky Endpoint Security for Windows.
- Install the latest cumulative patch for the latest Kaspersky Endpoint Security for Windows version.
You can also find answers to other questions about licensing in the Answers to frequently asked questions.
If the issue persists, collect the diagnostic data and submit a request to Kaspersky Technical Support via Kaspersky CompanyAccount. Also attach the Kaspersky Endpoint Security for Windows trace files and a report from the Administration Server about the use of the license keys.