BSOD 0xc000021a, No safe mode, reinstall or reset.


  1. Posts : 8
    Windows 10
       #1

    BSOD 0xc000021a, No safe mode, reinstall or reset.


    Ok. This is the furthest I've seen a computer go, and I don't have much hope left.

    My brother has a laptop (~4 yrs old). The battery went bad a couple of years ago, and so it now need to be plugged in all of the time. The laptop was asleep when he unplugged it to move it, and when he opened the lid again, it had shut down (very likely because it died). Upon starting it, he got the BSOD and 0xc000021a error code.
    The startup repair couldn't fix his problem. Two restore points he had on the system from installing DirectX a few days earlier didn't work. I tried entering safe mode, no luck. Now thinking I was at a last resort, I tried to refresh Windows, keeping his files but removing all the installed programs. I got a message at around 60% telling me Windows encountered a problem and couldn't complete the procedure. Same deal with the full reset. At this point, a reboot greeted me with "No operating system could be found".
    I got a large USB and made it into a recovery drive, checking the box that said to include OS files or something (can't remember the exact wording). I tried again using startup repair, then reinstalling windows.

    Shockingly, no luck. It failed once again.

    A big thankyou in advance!
    Last edited by DrGlick; 26 Dec 2015 at 16:03.
      My Computer


  2. Posts : 12,732
    Windows 11 Pro
       #2

    Hello DrGlick and welcome to the forums. Have you been able to recover all of your Brother's personal files? Please upload the BSOD Posting instructions BSOD - Posting Instructions - Windows 10 Forums. Upload them here. This will tell you how Screenshots and Files - Upload and Post in Ten Forums - Windows 10 Forums, if you can boot into the Operating system now.
      My Computer


  3. Posts : 8
    Windows 10
    Thread Starter
       #3

    essenbe said:
    Hello DrGlick and welcome to the forums. Have you been able to recover all of your Brother's personal files? Please upload the BSOD Posting instructions BSOD - Posting Instructions - Windows 10 Forums. Upload them here. This will tell you how Screenshots and Files - Upload and Post in Ten Forums - Windows 10 Forums, if you can boot into the Operating system now.
    Hey, Essenbe, you've helped me before and did a great job then too

    My Mother launched a rather late suprise by saying "Oh yeah she has all these recovery disks in a drawer somewhere". Something I had no idea about up until that point. So I managed to install Windows 8 from a disk, it all worked fine apart from having the wrong install code. However, his computer will be replaced in the next few weeks, and it's nothing to worry about.

    tl;dr: Have a repair disk or you're screwed.

    Thanks for taking the time to help though, I appreciate it.
      My Computer


  4. Posts : 12,732
    Windows 11 Pro
       #4

    You're quite welcome, I hope things work out well for you. If you need further help, feel free to ask.
      My Computer


 

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