Disk read error when booting from USB (Windows 8.1 Pro x64)

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MihailoM

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Aug 30, 2014
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Disk read error when trying to boot from USB.
My bios mode is Legacy, I'm trying too install windows 8.1 Pro x64 from my bootable usb. I used 3 different software (RUFUS YUMI UltraISO) and i tried manually via cmd prompt. After every try when i start to boot from my usb (I set it as primary boot in bios ofc) and when it tells me Press any key too boot from usb, after that it just says "a disk error occurred press ctrl+alt+delete"... I cant find a solution Please help me... Btw it worked yesterday when i Installed my current Windows 8.1 PRO x32, but after a few failures.
 
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MihailoM

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Aug 30, 2014
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When it finished making my usb bootable Status said:
"Files copied successfully. However, we were unable to run bootsect to make the usb device bootable. If you need assistance with bootsect, please click the "Online Help" link above for more information."

So my usb is not viable as a boot device orrr...?

I tried to boot from my usb (after windows software prepared it). And even though i set my USB as primary boot device in BIOS it just bypassed it and launched my OS from my SSD.
 
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cavalierz2

cavalierz2

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Nov 5, 2012
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Solution
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MihailoM

Reputable
Aug 30, 2014
6
0
4,510
I did it. It did fix the Win 7 USB tool and the preparation of the USB was successful. But the booting problem remains the same its just like it was when i was trying with other software. It doesn't even show the message: "Press any key to boot from USB..." it just straight out tells me "a disk read error..." i tried multiple times changing the USB port every time and nothing changes.
 
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