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Enable Boot from USB/CD

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uwdanman View Drop Down
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    Posted: 01 May 2020 at 6:16am
I have had a custom built PC with an ASRock mobo running for the past 6 years. I had Windows 7 updated to Windows 10 when Microsoft spammed the upgrade. A couple months ago an update went wrong and I'm greeted with a blinking cursor on a black screen on startup.

Specs:
Mobo: ASRock Z87E-ITX UEFI P2.50
CPU: Intel Core i5-4670K
RAM: 8gb ram

I've disconnected my graphics card. I'm trying to boot from USB or CD-rom, but am unable to select or specify these devices in the boot order menu. These device are not listed, only connected SSDs. I've tried several different Linux live/Windows bootable USB images on 8-16 gb USB 2.0 and USB 3.0 sticks. I've prepared the images as MBR and also tried GPT. When inserted into the mobo's onboard USB 2.0/3.0 ports, I cannot find an option to boot from USB in the bios/UEFI. I'm using a wireless keyboard with USB dongle to navigate the Bios screen, so I know that USB is enabled. I can find the boot menu, but the only option available is the hard drive boot order (my 2 installed SSD drives are selectable). I cannot select a UEFI: USB storage or find my CD-ROM drive when its plugged in. I've used an external DVD drive with the original Microsoft 7 installation CD-Rom and have not luck either.

Is there a setting that is keeping my Mobo from seeing these devices?
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RLGL View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RLGL Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2020 at 8:13am
Try disable CSM
Asrock Z370 Gaming K6,Intel i7 8700K,
Asrock x570 Taichi

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wannagofast View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wannagofast Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2020 at 8:35am
Try F11 at boot for UEFI setup boot options. Works on my Z77 board.

peace
wanna
Z77 Extreme6 - i7-3770K @ 4.4 GHz - 8GB GSkill 1866
MSI GTX 970 4GD5T OC - Samsung 850 Pro 128 GB SSD
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uwdanman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote uwdanman Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2020 at 10:22pm
Originally posted by RLGL RLGL wrote:

Try disable CSM


Thank you for the response. Prior to disabling CSM, here are my boot options. I only have hard drive boot options.



After disabling CSM, I receive no boot options.



For reference, I have a USB 2 jump drive with a linux live image, a USB 3 jump drive with a linux live image, and an external CD/DVD drive with official Microsoft Windows 7 installation CD plugged in to the back of the motherboard.

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uwdanman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote uwdanman Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2020 at 10:23pm
Originally posted by wannagofast wannagofast wrote:

Try F11 at boot for UEFI setup boot options. Works on my Z77 board.

peace
wanna


With CSM enabled, I hit F11 at boot and receive the following options. Only my SSD drives are selectable.

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