On certain occasion Kaspersky software may provide the following error message “Your computer security is at risk. Black list is corrupted".
The error message "Black list of key files is corrupted" can also show in the License Manager window. You can access the License Manager window by left clicking the License link on the bottom part of the main application window.
If the recommendations given above did not help you to rectify the problem, then re-install your Kaspersky software. In order to do so, uninstall the application and then install the application once again.
If the error keeps repeating, create a request to Kaspersky Lab Technical Support via the My Kaspersky Account service. Describe your problem in all details.
Release of antivirus database updates (required to protect your computer/server/mobile device)
Providing technical support over phone / web
Release of patches for the application (addressing detected bugs)
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