Run error when starting Protected Browser

Latest update: February 01, 2023 ID: 12692


When opening Protected Browser, you may get the error message: "Run error. Failed to run Protected Browser: 0x80000221” or the “Failed to run Protected Browser” notification in the lower part of the screen.


The error may be caused by modification of standard Windows libraries.


  • Set another default browser to proceed to websites. See the guide below.
  • Rename the Common folder where the Protected Browser settings are stored. See the guide below.

How to change the default browser in Kaspersky Basic, Standard, Plus, Premium


How to change the default browser in Kaspersky Security Cloud, Kaspersky Internet Security, Kaspersky Total Security, Kaspersky Small Office Security


How to rename the Common folder


What to do if the issue persists

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