Hi Steven,
Thank you for reaching out about the issue where your Windows 11 MSI laptop restarts instead of shutting down, as this kind of behavior can be especially frustrating after you have already tried several different solutions. I understand that you have followed multiple shutdown methods found online and that the system still powers back on even after using the physical power button, which understandably makes the issue feel persistent and hard to pin down. I completely get how disruptive this can be particularly when the device does not stay powered off and appears to disregard expected shutdown behavior.
One additional troubleshooting approach that often helps in this scenario is disabling Windows fast startup and hybrid shutdown features since these power management components can sometimes cause the system to resume instead of fully shutting down when there are driver or firmware conflicts. You can do this by opening Control Panel and going to Power Options, choosing what the power buttons do, selecting Change settings that are currently unavailable then turning off Fast Startup before saving the changes and performing a full shutdown. It is also recommended to check for any pending Windows updates along with MSI BIOS or firmware updates as outdated firmware can trigger automatic power on behavior during the shutdown process at the hardware level. In addition performing a clean boot by disabling all non‑Microsoft startup services can help rule out background system processes or third‑party services that may be intercepting the shutdown command and forcing a restart.
After disabling fast startup and applying any available BIOS or firmware updates, does the laptop power down completely or does it still restart on its own right away.
I hope this answer is helpful if you have further questions feel free to reply back
Regards,
Marcelo