Skip to content

[FIX] Error “0xc000000f – The Boot Selection Failed Because A Required Device Is Inaccessible”

Published and

This article will show you how to fix error "0xc000000f - The Boot Selection Failed Because A Required Device Is Inaccessible" at Windows Boot Manager.

Sometimes instead of blue screen of death (BSOD), we get errors of similar codes from boot manager. This errors are resultant of damaged files due to changes made by software. One of these error is “0xc000000fThe Boot Selection Failed Because A Required Device Is Inaccessible“.

Following is the screenshot of this error:

Also checkout this as well : The Boot Configuration Data File Is Missing Some Required Information In Windows 8

In this article, we’ll tell you how to troubleshoot this error with the help setup disc.So, here we go…

FIX : Error “0xc000000f – The Boot Selection Failed Because A Required Device Is Inaccessible”

1. Insert the setup disc under the DVD drive (setup disc of any Windows OS can be used here). For example, let us consider that we’ve entered setup disc of Windows 7 or later.

2. Due to this error, the system partition is still in working order, but aid to this recovery tools will suspect for installation on another partition. So it will show 0 MB however the actual size of that partition is 38 GB (consider for an example). Click the Next button after locating Windows 7 under System Recovery Options.

3. Now enter the following commands one by one:

diskpart

list volume

It will indicate the RAW volume, which is actually the NTFS partition and is responsible for the generation of boot error.

4. Now our main target is to convert this RAW volume into NTFS partition. To do so, type the following command:

chkdsk /r /f d:

Once this command used, the main partition now generates the error “The first NTFS boot sector is unreadable or corrupt.But the good thing is that it actually repairs the second partition.

In this way RAW volumes is converted into NTFS partition. Also the other errors involving indexes, master file table etc. are identified and repaired automatically. Reboot the machine, error should be disappear now.

That’s it! Similar fixes that you must read about:

1. [FIX] Windows 8 Master Boot Record Is Corrupted

2. [FIX] Windows 8 Freezes At Boot Screen

Kill many issues in your system using few steps at once:

1. [How To] Refresh Windows 8.1

2. [How To] Reset Windows 8.1

3. [How To] Reset Or Refresh Windows 8 Without Installation Disc

Suggested Articles

23 Comments

  • thanks bro.. awesome article and a great job on screenshots…. welldone!!

  • I think you there is a mixing of drives. thinking of checking bios setting

  • Great topic! one thing is sure that you r putting only working content anyway this error can be fixed easily with Easy BCD in case you dont have DVD: bit.ly/EBeMa

    Enjoy @

  • @ odio too costly software mate! not enough money to waste on simple issue ;)

  • Never got such issue bt thnx for valuble info____

  • wow truly admirable!

  • Don’t we start the PC in safe mode with this error???

  • this doesn’t work it delete my disk :(

  • I have laptop Sony vaio EA45FG10 with windows 8.1 licensed.
    It is giving error
    //boot/bcd missing or corrupted
    Also winload.exe missing or corrupted
    It takes half an hour to display this error everytime I restart.
    Now main problem is it is not detecting any flash drive or CD.
    I tried changing bios settings but also not working.
    I cant access cmd also..
    Please tell me what to do. How to backup my important data…

  • Kapil Arya

    ^^ If you have setup disc with you, try installing Windows 8.1 in a parallel drive. Once it is installed, you can backup all the data from main drive. If you wish you can use this newly installed OS, since it will also fix boot menu related issue.

  • Hi,

    i did all the steps but it didn’t work.
    I have Win. 7

    After i did diskpart – it told me that all volumes are healthy.

    After doing chkdsk /r /f d: it said: “corrupt master file table. Windows cannot recover master file table. Failed to transfer logged message to the event log with status 50.”

    Please help.

  • Kapil Arya

    ^^ Try to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues – support.microsoft.com/kb/927392

  • Hi, I have this problem on Windows 8. Until step 3 everything is correct and my RAW volume has assigned letter E:.

    When I type ‘chkdsk /r /f e:’ (step 4) I have message from system:
    ‘The type of the file system is RAW. CHKDSK is not available for RAW drives.’

    Do you know why step 4 doesn’t work on my PC?

    Please help :-) Thank you.

  • Kapil Arya

    ^^ Seems like the disk has failed. Refer: support.microsoft.com/kb/300415.

  • Hi I use but I am installing win 8 again the text appears

  • Kapil Arya

    ^^ This works for Windows 8 too :)

  • Thanks Its so useful

  • Thank you so much for you help, this really works on my surface pro.

  • Kapil Arya

    ^^ Glad we could help :)

  • I tried your way but d drive is already ntfs and , line has
    “Failed to transfer mssgs to event log w/status 50″ also recovery says empty I cant find anything in the d:.

  • Kapil Arya

    ^^ Do you have RAW volume on any other drive?

  • Hi Kapil,

    I have the same problem as Marek,until step 3 everything is correct and my RAW volume has assigned letter c:.

    When I type ‘chkdsk /r /f c:’ (step 4) I have message from system:
    ‘The type of the file system is RAW. CHKDSK is not available for RAW drives.’ I have read kb300415 please how do i use the diskpart command to repair my raw volume and convert it to ntfs?

    Please help I have read your articles but am stuck on this issue and cannot proceed. My laptop was running on win 8.1 when the reset failed.

    Thanks in advance.

  • The partition size when I first started up was not 0 and when I did the command chkdsk /r /f d: it gave me a list of commands. Also everything was NTFS with no RAW. But the error message in the image is identical

  • Leave a Reply

    Your email address will not be published. Required fields are marked *

    You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>