How To Fix STOP Error 0xc000021A In Windows 8.1

This guide will enable you to break down, settle Windows Blue Screen of Death, Stop Errors, Error Codes, Bug Check blunders, framework crash mistakes, framework blame, piece mistake crashes in Windows 10/8/7.

Beginning with Windows Vista, the occurrence of Blue Screens or Stop Errors have radically descended. At the point when Windows experiences a condition that bargains safe framework operation (i.e., a “bug”), the framework stops.

Blue Screen of Death in Windows 10/8/7

This condition is known as a ‘bug check’. It is additionally ordinarily alluded to as a framework crash, a piece mistake, a framework blame, or a Stop Error.

In Windows XP, the Windows Error Reporting framework was basically manual yet has now been enhanced and streamlined in Windows 7 and Windows Vista.Fix Error 0x000021a in Windows 10 While this might be the situation, Blue Screens haven’t quite recently vanished. You may even now get the chance to see them on Windows 7/8 as well.

As a rule, when a BSOD happens, it remains for a moment before the PC promptly restarts. Thusly we can’t read what is composed. To get around it, one needs to debilitate the auto PC restart choice from the StartUp and System Recovery settings. Knowing the mistake code can help recognize the issue/arrangement. Do it as takes after:

Incapacitate UAC. Control Panel > System And Maintenance > System > Advanced System Settings > Advanced tab > Under Startup And Recovery > Click Settings > Clear the Automatically Restart check box > click OK. Empower UAC.

Windows will endeavor to settle the issue without anyone else much of the time, however in the event that it can’t recuperate alone, it will cause a blue screen.

Here is a window I got the opportunity to see one of my lone late Windows 7 Blue Screen.

Stop Errors in Windows 10/8/7

Clients of Windows framework are certain to have encountered, at some point, the fear of “The Fatal Exception”, normally called the “Blue Screen Of Death”, or BSOD. In spite of the fact that the BSOD has to a great extent been tossed onto the product slag stack, in Vista, crashes haven’t been completely exiled. At the point when Windows experiences a condition that bargains safe framework operation (i.e., a “bug”), the framework stops. This condition is known as a ‘bug check’. It is likewise normally alluded to as a framework crash, a bit mistake, a framework blame, or a Stop blunder. At the point when Windows experiences such a genuine mistake, to the point that powers it to quit running, it shows a BLUE SCREEN OF DEATH or simply ‘affectionately’ called BSOD!

In Windows 10/8/7, dissimilar to XP, where the framework was basically manual, the Windows Error Reporting has been enhanced and streamlined in Windows 7 and Vista. One needed to catch up to check whether an answer had turned out to be accessible. This was a somewhat difficult process. In Windows 10/8/7/Vista, this whole revealing and follow-up process is computerized.

Nowadays a Windows 10/8/7/Vista client is all the more frequently liable to see a message as takes after: “Microsoft Windows Operating System isn’t reacting.” And clients are given two potential outcomes. They can either “Shut the program” or “Sit tight for the program to react.” One holds up with the expectation that the issue will be settled, or else then one just shuts the program and gets readied to lose data. At any rate, these messages look less overwhelming.

The BSODs then again were/are very horrendous and disappointing, without a doubt!

The correct content of a Stop mistake changes, as indicated by what caused the blunder. In any case, the configuration is institutionalized and is comprised of 3 sections:

  • Section 1: Symbolic blunder name: This is the Stop Error message that is given to the OS and compares to the Stop Error number that shows up.
  • Section 2: Troubleshooting suggestions: This content applies to all Stop Errors of that specific sort.
  • Section 3: Error number and parameters: Its the bug check data. The content after the word STOP incorporates the mistake number, in hexadecimal documentation, and up to four parameters that are average of this blunder compose.

By and large, there are not very numerous alternatives for a recuperation. Regularly, one tries to simply “reboot” the PC with the expectation that the BSOD happened as a result of an uncommon state of some driver which was disregarded in coding and testing. Be that as it may, if the BSOD holds on, there are a few strategies that might be utilized to repair the framework there are more than 250 recorded BSOD codes.

Take, for instance, the most widely recognized BSOD:


This is a genuinely regular BSOD that happens when a driver has unlawfully gotten to a memory area while NT is working at a particular IRQL. Windows Book This is a driver coding mistake, similar to attempting to get to an invalid memory area.


  1. memory area that was referenced
  2. IRQL at time of reference
  3. 0 == read, 1 == compose
  4. code tended to which referenced memory


There is none. This is a lethal blunder and is a driver coding mistake.

Screen Troubleshooter.