Run error when starting Protected Browser


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Run error when starting Protected Browser

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Latest update: August 24, 2020 ID: 12692


When opening Protected Browser, you may get the error message: "Run error. Failed to run Protected Browser: 0x80000221".


The error may be caused by modification of standard Windows libraries. This can happen when a custom Windows visual theme is applied.


  1. Remove all third party Windows visual themes.
  2. Run the sfc /scannow system file scanner. See the instructions on the Microsoft support website.

What to do if the issue persists

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