Error "Some protection components are corrupted"

This article concerns:

• Kaspersky Anti-Virus
• Kaspersky Internet Security
• Kaspersky Total Security
• Kaspersky Security Cloud
• Kaspersky Small Office Security

Issue

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

Solution

Reinstall the application:

1. Download the installer from the Kaspersky Lab website.
   • Kaspersky Anti-Virus
   • Kaspersky Internet Security
   • Kaspersky Total Security
   • Kaspersky Security Cloud — Personal, Family or Free
   • Kaspersky Small Office Security
2. Remove the application. In the Saving objects window, select the License information checkbox. See this article for instructions.
3. Restart your PC.
4. Run the installer.
5. Activate the application.

The Kaspersky Lab application will be reinstalled.

What to do if the error persists

If the recommendations did not help or you experience difficulties during installation or removal, send a request to technical support:

• Through My Kaspersky for Kaspersky Internet Security, Kaspersky Anti-Virus, Kaspersky Total Security, and Kaspersky Security Cloud. See the Online Help page for instructions.
• Through the Kaspersky Small Office Security Management Console for Kaspersky Small Office Security. See the Online Help page for instructions.