Can't install Windows 10/8/7 - "The boot selection failed because a required device is inaccessible." 0xc0000185 Error

Hey everyone. So I'm having a MAJOR issue with installing Windows. I'm trying to install a copy of it on a blank, never used before, HDD but I can't even get to the setup screen of the windows installer. The issue starts when I set it to boot. On the Windows 10/8 versions, it just shows the Windows logo solidly for 20 mins before presenting me with an error screen (img below). On the 7 it does the same but with a loading bar.

I'm installing onto a USB that I use to boot. To try and fix things, here is what I have tried:



Does anyone have any ideas? Been pulling my hair out about this for frickin ages.

Edit: Forgot computer specs.


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More about install windows boot selection failed required device inaccessible 0xc0000185 error
  1. Here is what a quick search brought me.

    https://ugetfix.com/ask/how-to-fix-boot-configuration-data-error-code-0xc0000185-on-windows-10/

    Give it a look. I'll check back later and see if it's been fixed.
  2. The problem with this though is it assumes I can gain access to the setup menu. I cannot. It's indicated by step 3 that I should be able to get to the setup menu but I just get this error when trying to boot from the USB.
  3. could be the hdd. can't you replace it or test it on another pc?
  4. pull the gpu see if pc work fine with onboard video. if errors out try swapping ram sticks. if it gets stable wipe all partion from new hard drive and reinstall them.
  5. rgd1101 said:
    could be the hdd. can't you replace it or test it on another pc?


    Its nothing to do with the HDD I believe. As I can't even reach the setup screen to select it to install to the HDD. The HDD is visible and registered as working in the bios, and I can boot to it. (Not that does anything since its empty.)

    rgd1101 said:
    pull the gpu see if pc work fine with onboard video. if errors out try swapping ram sticks. if it gets stable wipe all partion from new hard drive and reinstall them.


    Could the GPU even affect a USB's ability to boot a windows installation disc? The hard drive is clean and empty. Its brand new.
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