NP8377-S Notebook - Disable Booting from USB?

Sager NP8377-S

Is there a setting in the UEFI Settings menu that allows me to do this? I have an annoying issue where when I first boot the system up with my USB mouse and keyboard, the system hangs at the Sager splash screen. I can only get around this by unplugging all USB devices and then booting up the system as normal, then re-plugging the USB devices in after Windows 10 boots.

I've looked in the menu but I do not see anything that comes to mind. Is there an obscure setting in the manual somewhere I'm missing?

https://www.sagernotebook.com/drivers/manual/Manual_NP8377.zip

 

The boot order should get round this, sounds like something else is going on.

 

The only other thing I can think of is possibly this update:

https://support.microsoft.com/en-us...9042-928-cead30cd-f284-4115-a42f-d67fec538490

After installing this update on 4/16/21, the problem started the next day.

 

You could go to add remove programs and undo the update.

 

It seems I've found the root of the problem in Event Viewer:

Idle power management features on processor x in group x are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware. (Event ID 34)

How would I go about installing updated Firmware?

 

That might be a red herring but your reseller usually.

 

Finally found the problem. Since Hibernation was disabled on the system, but Fast Startup was enabled, that was what was causing the weird hanging at bootup issue:

https://thegeekpage.com/what-is-fast-startup-and-how-to-turn-it-on-in-windows-10/

With Fast Startup disabled, the problem went away.