Error "Some protection components are corrupted"

Latest update: 11 October 2023 ID: 14827
Show applications and versions that this article concerns
  • Kaspersky Standard, Plus, Premium
  • Kaspersky Security Cloud
  • Kaspersky Internet Security
  • Kaspersky Anti-Virus
  • Kaspersky Total Security
  • Kaspersky Small Office Security


If you get the error "Some protection components are corrupted", then your Kaspersky application does not provide solid security for your data.


Reinstall the application:

  1. Update antivirus databases and restart the computer. See the instructions for your application:
  2. If the database update didn't help, reinstall the application:
    1. Download the installer for:
    2. You can no longer download Kaspersky Security Cloud. Switch to our new Kaspersky Premium solution.
    3. Uninstall the application. In the Saving objects window, select the License information or Subscription information checkbox. For instructions, see this article.
    4. Restart the computer.
    5. Run the installer.
    6. Activate the application.

What to do if the error persists

If the recommendations did not help or you experience difficulties during installation or removal, contact Kaspersky Customer Service.

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