Windows 8 and 8.1 Forums

Windows 8.1 - Error 0XC000021A after optional updates

  1. #1

    Posts : 1
    windows 8.1

    Windows 8.1 - Error 0XC000021A after optional updates

    Hi All..

    I was reviewing my windows updates and saw two optional updates that were pending. First one was for MS office and it went through fine. Second one was some update to AMD vision control center. During that update screen flashed couple of times and went for re-start. After that I am unable to get into the system. I tried safe mode/debugging/low resolution mode etc.. But all resulted in the same blue screen with the 0xc000021a error message.

    I am able to go only to command prompt. Nothing else (fortunately I am able to backup my photos by connecting external hard drive and using command prompt). I checked the SRT log file but it doesn't say any issue. All passed.

    I tried refresh PC but it came back and said "There was a problem refreshing your PC. No changes made".

    I tried using win ISO image bootable flash drive. It couldn't get through me in (I just tried with PC repair option when I booted with ISO image).

    Is there a way I can get over it without re-installing?

    Thanks in advance...

    Krishnan V

      My System SpecsSystem Spec

  2. #2

    Canon City
    Posts : 249
    Windows 8.1 Pro 64 Bit

    STEP 1: Enter cmd
    STEP 2: Now in the Command prompt just type System Root\System32\Drwtsn32.exe -I. This process will register the Dr.Watson as the default system debugger which has to be -> Press Enter.
    STEP 3: Again type System Root\System32\Drwtsn32.exe and then in the window choose the option which are Append to existing log file, Create crash dump and Visual Notification.
    STEP 4: After setting it up restart the computer by pressing F8 in the startup and select Last known good configuration.
    STEP 5: Once it got booted up, again restart the system in the normal and now try to look at your optional updates to make sure not to install whatever may have broken it before.

    If this does not work then you may have to reinstall.
      My System SpecsSystem Spec

Windows 8.1 - Error 0XC000021A after optional updates

Similar Threads
Thread Forum
BSOD error 0xc000021a while on Chrome
Hello guys, I was on chrome and all of a sudden I got a BSOD with the error code 0xc000021a Dump file attached, thanks for all your help in advance. This community has always been amazing at helping me fix my BSOD issues. I appreciate it! :) 57719 The full memory dump...
BSOD Crashes and Debugging
Error 0xc000021a unsolvable?!?!?!
Alright so here I go... I get home from work and boot my PC, only to find it wasn't responding to anything and the clock dissappeared from the welcome screen. So, as most other people would, I hard reset it as it would not respond to the power button. However, I seem to have created a problem...
BSOD Crashes and Debugging
Windows 8 wont start with error : 0xc000021a
I own Dell laptop (windows 8 pro with media centre -- GENUNE , NO PIRATING,nothing cracked) which is hardly 3 years old.. it juat worked fine till yesterday evening.. i was playing saints row 4 and after closing that game noticed that the battery is about to get low to 10 %.. i just kept it in...
General Support
Stop Error 0xc000021a after windows updates
Asus S200E notebook, Win 8 Pro I recently took in this laptop for my neighbor. The original idea was to scan and clean up the system. I set the laptop up in my office, ran an MSE full scan with no issues. Then ran a full Malwarebytes scan, which returned a few pups, which were removed. After...
Windows Updates & Activation
Unable to Hide Optional Updates
For the longest time I've been unable to hide Microsoft Silverlight and Bing Desktop. I'll right click and select " "Hide update" but they return either a few seconds later or after a reboot. I have found others with this issue and was having someone here had a solution. Very annoying. James
Windows Updates & Activation
Bluescreen error 0xC000021A
Hello, I have installed Windows 8 Pro on my PC and on my Laptop. The problem is since yesterday the laptop ist showing the error 0XC000021A. It only writes that my PC ran into a problem and needs to restart. After a restart it just writes the system must be recovered and if I click on "Recover" it...
BSOD Crashes and Debugging
Installation error 0xc000021a
I've downloaded Windows 8 Developer Preview With Developer Tools 64bit Image file and burn it into a usb hdd. Whenever i want to install it says like that.......... Your PC ran into a problem that it couldn't handle, and now it needs to restart. You can search for the error online:...
Installation & Setup

Eight Forums Android App Eight Forums IOS App Follow us on Facebook