Question Re: BIOS loop due to “A disk read error occurred”

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ymi04060513

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Nov 24, 2018
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As the title says, my brother's computer is stuck in a BIOS loop due to “A disk read error occurred”, any suggestions on what I can do? I've never seen this issue before, and from what I've gathered on Google, there seems to be an urgency for solving this as quickly as possible. I don't really think he'd mind fresh wiping his computers, no valuable pictures/videos on it, from my understanding. I'm going to try to pull his specs from memory here, but he's working with a Nvidia RTX 3070 GPU, Ryzen 9 5900x CPU, Tomahawk B450 PRO MAX MOBO, 32Gbs of DDR4 Dominator RAM, and a Samsung 860 EVO 1 TB SSD. From what he's told me, he was playing games, and then suddenly everything stopped responding, and then he restarted his computer, and when it booted up after this, steam and Discord turned white and unresponsive, and then he got an error message that 'Windows has stopped working end process', and then he restarted once more, and then he got caught in a loop of "A disk reader has occurred" and is only able to access BIOS now, I tried to switch around boot priority and toggled CSM/EUFI both ways, but besides that, he seems to be now stuck in a loop.

Any insight you could give would be great; thanks.
 
What is the specific behaviour ? You use the term "stuck in a loop" but I cannot see a description that match this behaviour.

If the SSD are disconnected, are you able to boot using a bootable usb stick ?
Okay, I'm gonna try this in ~2 hours, but if it does boot without the SSD being connected what does this mean? And if it doesnt?
 
Okay, I'm gonna try this in ~2 hours, but if it does boot without the SSD being connected what does this mean? And if it doesnt?
Man this is really not my field so you're gonna have to give me very clear step by step help but basically, I booted up my own PC, downloaded Rufus, and then downloaded a portable boot and then put that on a USB, went over to my brothers computer, and then booted it up, after nothing happened on the first 2 times, it just sat there with a blank screen and a blinking underscore in the top left, I went into BIOS, and into the boot priority, and moved the USB stick up to first, and then I got this message which read exact as: "Press any key to boot from USB. . . .L", so naturally I pressed any key on his keyboard and nothing really happened. And also to note during this endeavor his wireless mouse wasn't working into the BIOS screen so I was using his keyboard keys to move around and his keyboard was working in the BIOS screen. I really have no clue what Im dealing with here. Is this just a case of, his SSD crapped out, unlucky, get a new one, install it and that's about it?
 
after nothing happened on the first 2 times, it just sat there with a blank screen and a blinking underscore in the top left
Ok, so there might be some reasons why the USB fails to boot:
  • Rufus failed to make it bootable. Try another software instead <alternativeto>
  • ISO image corrupted during download - try downloading again or check the SHA sum of the file to verify.
  • Something is wrong with the thumb drive, or (in very rare cases) an otherwise good usb stick somehow refuse to boot on some particular motherboards (I had one such case back in 2016 where "nothing" worked out but replace the usb stick, but same usb stick proved good afterwards and was able to boot properly on all other motherboards I tested it on).
  • Motherboard require secure boot. Disable this setting - look <here> for better explanation.
 
Ok, so there might be some reasons why the USB fails to boot:
  • Rufus failed to make it bootable. Try another software instead <alternativeto>
  • ISO image corrupted during download - try downloading again or check the SHA sum of the file to verify.
  • Something is wrong with the thumb drive, or (in very rare cases) an otherwise good usb stick somehow refuse to boot on some particular motherboards (I had one such case back in 2016 where "nothing" worked out but replace the usb stick, but same usb stick proved good afterwards and was able to boot properly on all other motherboards I tested it on).
  • Motherboard require secure boot. Disable this setting - look <here> for better explanation.
I have no idea what any of this means, I just watched this video
View: https://www.youtube.com/watch?v=2SXscyVArMI&t=229s
and have no idea what the hell ISO files are, everyone is just talking about slapping on a bunch of ISO images into this USB drive, what does any of this mean, what do I put onto the USB drive, where do I find which ones I should use, where do I download them. Let's also take a step back because I have no idea what you guys are asking me to do either. If It boots off of the USB stick what do I do after this? What does this mean?
 
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