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Fatal System Error c000021a – Stop c000021a Fatal System Error effectively

Posted by in Blog blue screen error
on September 20th, 2012 | Leave a comment

“STOP: c000021a {Fatal System Error}
The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000034 (0×00000000 0×0000000)
The system has been shutdown.”

c000021a fatal system error

c000021a fatal system error

The above fatal system error c000021a message will suddenly appear on your computer together with a blue screen. Why this error happens is usually due to failure in loading a required important Windows feature during the log-in process of your PC. And this c000021a blue screen error can happen in almost all Windows-based operating systems, including Windows XP, Windows NT, Windows Server 2003, Windows Vista & even Windows 7.

Actually, the c000021a fatal error can be caused by many reasons, ranging from mismatched system files, malware infections, improper installation of service pack, computer hard disk errors and registry problems. Anyhow, you are able to fix it instantly with the steps below.

No matter you are getting a fatal system error c000021a message right now or not, you’d better scan the computer for viruses. Virus infection is usually the main cause for many computer errors on the PC just like error 1305. To always make the computer run properly, first it is necessary for you to install an anti-virus program and regularly scan it for virus, which will protect it from being attached by any virus or malware. We know that once the computer is infected by a virus/malware, lots of resources will be taken when running it. So in my opinion, this is the first one you need to do in order to always prevent and fix code c000021a blue screen errors.

After making the computer is totally virus clean, check what you have ever done on the computer. Sometimes, some incompatible graphics drivers and Wireless network drivers will stop the computer from running properly by showing a blue screen error with the fatal system error c000021a. If this is the case, you can uninstall them immediately and re-install them again in compatible mode. To do this, you can simply follow the steps here:
* When downloading a driver, select to place it on the Desktop.
* Right Click the driver installation file and select Properties/Compatibility Tab. Select the appropriate options in from the appearing list.
* Click Apply/OK to continue.
* Right Click the file and select the “Run As Administrator” option to install it on your PC.

Thirdly, you have to check and fix corrupted system files. It is very easy for some required system files to become corrupted. A third-party software, or a virus infection, is able to replace the file with some other ones or directly modify & remove them from the computer. When the system cannot connect to the required files correctly, a fatal system error c000021a will happen. So, it is highly suggested that you can use the System File Checker to check and fix corrupt system files immediately.

* Insert to the disc that you install Microsoft Windows.
* Click Start | Run.
*Type SFC /ScanNow and press ENTER.

If all the steps above do not work to solve the fatal system error c000021a and get rid of the blue screen error, it might be caused by some registry errors. We all know that Windows registry is importantly needed to ensure the stable running of the computer; however, a severe error in Windows registry can most of the time turn into an unbootable system and results in different kinds of computer error messages. As time goes, such problems make the system fail to read registry files or the stored data become inaccessible, too. So, the last suggestion here for you to fix the fatal system error c000021a message is to directly download and run a powerful registry cleaning tool. Such tool is designed to completely scan & fix all registry errors quickly & safely.

Troubled with the fatal system error c000021a on your computer? You are able to stop c000021a fatal system error effectively within one button. The NO.1 computer diagnosis software is available on the market that allows you to completely scan the whole PC and get rid of all errors inside that cause the appearance of the fatal system error c000021a.

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