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Gigabyte GA-Z77X-UD3H Rev 1.1 won't boot from USB for love or money

I've tried a variety of USB sticks with different bootable media (Win10, Darrick's Boot & Nuke, Ubuntu), all freshly made today. I've tried using the Windows boot options to force a boot from USB, set USB first in the BIOS under boot options, and used F12 to select the USB stick manually as my boot medium.

No matter what I do, the system keeps moving to and booting from the Windows drive.

Any suggestions? The USB keys seem to be recognized; in Windows, I can see/read/modify contents. They just won't boot, andthe system just keeps horking me into Windows.

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Re: Gigabyte GA-Z77X-UD3H Rev 1.1 won't boot from USB for love or money
« Reply #1 on: November 07, 2020, 03:23:54 pm »
Disable secure boot.
Create the USB key with Rufus with GPT partition.
Try to use the back IO USB ports for testing.
Maybe try a different USB stick.

 

anything