Windows 10 How to fix "operating system boot mode change (021)"

  • Thread starter Thread starter Pufferfish3
  • Start date Start date
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Pufferfish3

Hi, the HP laptop suddenly shows the message "Operating System Boot Mode Change (021)" with the option Code + Enter to complete or ESC to continue without changing. I have not initiated any change, so I always press ESC. After that, Windows 10 runs normally. However, the next time I restart the laptop, the same message comes up. What do I have to do so that the message no longer comes and no change is made? I think I need to set something in the BIOS, but I'm not sure what.

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