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far2brid's avatar
far2brid
Iron Contributor
Jan 02, 2026

Windows 10 shuts down but immediately restarts or displays a black screen

After installing the new Windows 10 system, shutdowns functioned normally for the first few days. Subsequently, the system began automatically restarting upon shutdown or displaying a black screen (unable to enter BIOS). Replacing the power supply and resetting the BIOS proved ineffective. Seeking troubleshooting steps to identify the root cause of the issue.

1 Reply

  • Josew's avatar
    Josew
    Silver Contributor

    Run `powercfg -h off` at the command prompt to disable Fast Startup, and check for the latest BIOS update for your motherboard.

     

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