Z77 Extreme4 p2.90Q wont boot uefi usb

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   I broke my bcd file and have been trying to fix it but nothing was working and then I found to fix I had to boot with a uefi drive.
I swapped out my win7 recovery disc for a uefi formatted by rufus usb but it wont boot it.
If i select the uefi: usb stick option it just flashes the screen and nothing happens.
If i select usb: usb stick it says theres nothing on there!
Why wont the asrock uefi setup utility open my uefi bootable media?

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B-Man Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 26 Nov 2018 Status: Offline Points: 10	Post Options Post Reply Quote B-Man Report Post Thanks(0) Quote Reply Topic: Z77 Extreme4 p2.90Q wont boot uefi usb Posted: 13 Jun 2020 at 11:45am
	I broke my bcd file and have been trying to fix it but nothing was working and then I found to fix I had to boot with a uefi drive. I swapped out my win7 recovery disc for a uefi formatted by rufus usb but it wont boot it. If i select the uefi: usb stick option it just flashes the screen and nothing happens. If i select usb: usb stick it says theres nothing on there! Why wont the asrock uefi setup utility open my uefi bootable media?

B-Man Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 26 Nov 2018 Status: Offline Points: 10	Post Options Post Reply Quote B-Man Report Post Thanks(0) Quote Reply Posted: 13 Jun 2020 at 11:46am
	I should add I have tried different versions of rufus, different sticks and different usb ports

LewisH95 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 13 Jun 2020 Status: Offline Points: 4	Post Options Post Reply Quote LewisH95 Report Post Thanks(0) Quote Reply Posted: 13 Jun 2020 at 7:39pm
	Booting from another device and trying suspend-to-ram mode shows that the i750 device does not come back properly. After using UBU to update the integrated RST blobs (also did the integrated graphics blobs and latest microcode updates), the system now resumes from sleep. For anyone trying NVME+Asrock z77 extreme4, consider trying the attached bios. As usual with these sorts of things, your hardware, your problem if anything goes wrong.