Cumulative June Update Corrupted BCD on SSD. Any fix?

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  1. Posts : 7
    Win10 Home
       #1

    Cumulative June Update Corrupted BCD on SSD. Any fix?


    Hi all.

    This is a lot of information and I apologize in advance for that but I feel like too much is better than too little.

    I’ve been limping an old computer along for a while for budgetary reasons and the most recent Windows update appears to have bricked it. This is a custom I built years ago. Core i5 3570k and a gigabyte z77-d3h motherboard.

    After I clicked “update and shut down,” the computer rebooted itself and gave me the error “Reboot and Select Proper Boot Device.”

    I went into the BIOS and the boot order was wrong - the order started with my hard drive that only had music and movies on it, the SSD had been totally removed from the list, etc - so I set it to boot from the SSD as normal. I ran into the same error. I unplugged all other drives and peripherals and did it again. Same error. I reset the BIOS to factory settings. Same error. I found my Windows 10 install DVD and tried to boot from the disk after selecting “repair my computer” - this gave me a “disk read error.”

    When I try to boot from the install disk, I only get the options to “troubleshoot” or “shut down.”

    Here are my options in the “Troubleshoot” menu, the only one I have, and what happens when I click them.

    1. System Restore: “To use System Restore, you must specify which Windows installation to restore. Restart this computer, select an operating system, and then select System Restore.”

    2. Command Prompt: Opens the Command Prompt.

    3. System Image Recovery: “Windows cannot find a system image on this computer. Attach the backup hard disk or insert the final dvd from a backup set and click Retry. Alternatively, close this dialog for more options.” I am pretty good about making new system images, I think I made one a few weeks ago before I moved, but it can’t find any of them, even if I plug the drives back in.

    4. UEFI Firmware Settings: “Restart to change firmware settings.”

    5. Startup Repair: Puts the computer into a reboot loop and gives me a “disk read error.”

    6. Go back to the previous build: “we ran into a problem and won’t be able to take you back to the previous build. Try resetting your current build instead (Troubleshoot > Reset this PC).” I do not have a “reset this pc” option.

    I have only been able to get into the command prompt. It is telling me I only have a windows installation on my F:/. This is my SSD, so that makes sense. When I go into DISKPART and type “list volume” the F:/ is labeled as an NFTS partition of “Volume 2” and has a status of “healthy.” and running /bootrec fixboot gives me “element not found.”

    So that was all last night.

    This morning, after leaving it alone for a night, I booted up the computer and was greeted with “an operating system wasn’t found.” I tried everything in this support article:

    https://support.microsoft.com/en-us/...9-336f3888906b

    which didn’t fix the problem, but changed it - I started getting an error saying “File: Boot\BCD” was in status 0xc000000f, “the boot configuration data for your pc is incomplete or contains errors.”

    I stumbled onto this thread and tried all this:

    Bootrec /rebuildbcd gives "Element not found."

    With no changes.

    What should I try next? I am completely stumped.

    I would rather not do a fresh install and lose everything as I was planning to build a new pc soon anyway, just, you know. Not RIGHT NOW.

    Thanks in advance.
      My Computer

  2. dalchina's Avatar
    Posts : 31,909
    Win 10 Pro (1903)
       #2

    I would rather not do a fresh install and lose everything as I was planning to build a new pc soon anyway, just, you know. Not RIGHT NOW.
    People so often say this.... understandably....... and therefore, you have been using disk imaging routinely, as is endlessly recommended here - haven't you? (E.g. Macrium Reflect - free + large enough external disk for image files).

    First thing I'd do is check your disk.
    As you can't boot, that leaves you 2 options.
    a. Use a suitable live boot disk - various ones free to download as an iso file and create- utilities included- and shoudl be able to then also run truly portable programs.

    E.g. Crystal diskinfo - basic SMART parameter analysis.

    b. Remove disk, place in caddy, connect via USB to another PC and check.

    If the disk is ok, you could try booting your system from either
    - a live boot disk which includes Macrium Reflect
    or
    - create Macrium's own bootable disk and boot your PC with that

    and then run Macrium's useful Fixboot utility.

    A live boot disk should also include a partition manager, so if you wish you can inspect your partitions, for example.

    Naturally the above assumes you have access to another working PC...

    Do you have any idea which update it was?
      My Computers


  3. Posts : 7
    Win10 Home
    Thread Starter
       #3

    Hi there, thanks for the reply. I have not been using “disk imaging” software per se, but I do create a system restore point about once a week. Currently I am not even able to get into the menu that would allow me to load a new one, it simply tells me I have to select an operating system. I do have an external backup of all of my files (images, movies, music) however my SSD has all of my programs, games, etc - so it would be a huge hassle but no great loss, fortunately.

    Sadly I do not have access to another working PC as my mother is a Mac user, as are most of my friends, and my father is a bit of a technophobe.

    I believe it was the June 2021 Cumulative Update but I can’t be certain - I confess I just hit “update and shut down” after drinking two beers and recording some music to wind down after work last night, didn’t exactly have my wits about me!
    Last edited by obesechess; 19 Jun 2021 at 13:33. Reason: Forgot to answer a question
      My Computer

  4. dalchina's Avatar
    Posts : 31,909
    Win 10 Pro (1903)
       #4

    System Restore has limited coverage, and only deals with certain things within the Windows partition. Basic booting issues or boot sector corruption cannot be fixed by SR.

    Whilst SR can normally be run on an offline system, the fact that you can't suggests something more basic is amiss. That's why you need to check the disk first.

    At best, SR could correct registry corruption preventing a system booting, assuming it could run and complete. I think your problem starts well before that.

    If you can't beg access to another PC, but you do have a spare disk, and you consider there's a chance of fixing your existing O/S, you could put the spare disk in in place of your current system disk and clean install Win 10, as you have a Win 10 boot disk. That way, if it works, you know the rest of the hardware works, and you can then proceed from there. A spare flash drive would then be useful.

    Others may well contribute further ideas.
      My Computers


  5. Posts : 7
    Win10 Home
    Thread Starter
       #5

    Alright. I’ve managed to make a USB Drive of the Windows 10 Recovery Media as per Microsoft Tech Support’s suggestion. No more disk read errors. However, “startup repair” now says it can’t repair my PC, “uninstall updates” doesn’t work, and “system restore” and “system image recovery” give me the same issues as above.

    Command prompt? Or admit defeat?
      My Computer

  6. dalchina's Avatar
    Posts : 31,909
    Win 10 Pro (1903)
       #6

    Ensure you have a backup of anything important, admit defeat, and clean install, hoping that the disk is actually ok (which you don't know).

    If you get your PC running again, then make due preparations: start using disk imaging routinely BEFORE you start configuring and installing like crazy, remembering to create a bootable disk from your imaging program.
      My Computers


  7. Posts : 7
    Win10 Home
    Thread Starter
       #7

    Bah. I’ll yank the SSD, see if I can put it in a cage to yank the files off of or copy new boot configuration data on. If itÂ’s toast, I had been looking for an excuse to build a new PC after eleven years anyway. If it’s still good, I’ll pull what I can and do a clean install - I have all my photos, music, etc backed up to an external drive, but all my programs and games and game saves are on the SSD and losing those would be annoying.

    Thank you for the help!

    - - - Updated - - -

    Hello - I fixed it. I mean, it sort of fixed itself. On a whim, I booted into the BIOS to select what to boot from again. This time, the USB drive showed as both a UEFI device and just a normal USB drive (no prefix, just "Sandisk Cruzer.") It had previously only been UEFI: Sandisk Cruzer. I booted from the non-UEFI cruzer and it took me into the recovery menu. I clicked "troubleshoot" - > "repair startup" and the computer went "diagnosing... attempting to fix..." and booted right up.
      My Computer

  8. Railtech's Avatar
    Posts : 485
    Win 10 Pro x64 versions
       #8

    Your boot configuration held in the bcd store for the SSD was not being located due to the UEFI firmware attempting to boot in UEFI mode. You obviously have an MBR/BIOS boot machine so selecting the non-UEFI cruzer disk was enough to override the UEFI and once again boot MBR devices. Therefore your SSD once again became a valid boot device.
      My Computer


  9. Posts : 7
    Win10 Home
    Thread Starter
       #9

    Yeah - I wish I could figure out what happened overnight that the USB Drive suddenly showed up as a non-UEFI device (pardon me if that's not the correct terminology) as I assure you that option was not present before this evening.
      My Computer

  10. Railtech's Avatar
    Posts : 485
    Win 10 Pro x64 versions
       #10

    Your attachment of the USB drive did the trick as that device has both UEFI and non-UEFI boot loader files. This triggered the MBR boot to become available. My guess is the update should have restarted even though you selected update and shutdown because restart was required. Because that did not happen it left your PC boot applications in an unstable state and they defaulted to UEFI boot which resulted in your troubles.
      My Computer


 
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