


C00002lA Fatal System Error is a blue screen of death error that may occur when you start your Windows NT 4.0 based computer. This error causes the screen to turn blue and the system also shuts down.
The stop C000021A error message is displayed in the following format:
Stop c000021a {Fatal System Error}
The session manager initialization system process terminated unexpectedly with a status of 0xc0000017 (0x00000000, 0x0000000) The system has been shut down.
The stop C000021A error occurs when either Crsrss.exe or Winlogon.exe fails. When the Windows NT kernel identifies that either of these processes has failed, it stops and the error code stop C000021A appears on the computer screen.
Here are some of the underlying causes for the stop C0000021A error:
To resolve the stop C000021A Fatal System Error on your PC try the following solutions:
If the error occurred after you recently installed a new program, then it is advisable to remove that program. The error occurs due to the incompatibility of the program.
To remove the program go to the start menu and click on the control panel. Now click on Add/Remove Program tab and double click on the program name that you recently installed and remove it from the list.
Once removed, not reboot your PC. Reinstall a compatible program and run it. It is most likely to resolve the issue. However, if the stop C000021A error still occurs, then it means the problem is critical. It is related to the registry.
This procedure is slightly long and tricky.
To try it, you need to be technically sound. Here’s what you have to do: first create a parallel installation of Windows NT.
Start your PC to the parallel installation and then open the Registry Editor. On the Registry Editor’s Windows menu click HKEY_LOCAL_MACHINE on Local Machine and then click Load Hive.
Now type the path %systemroot%system32configsystem into the System hive of the prior installation. Then click open. Here you will be prompted to enter the name of the key, type TEST.
Note the setting for the current DWord value in the preceding registry key. This is 0x1 and is denoted by CURRENT:Reg_Dword: 0x1.
This value indicated that the Current Control Set for your original Windows NT installation corresponds to ControlSet001 in this window. Now if the value is 2, it indicated that the Current Control Set corresponds to ControlSet002.
Now locate the following registry key:
HKEY_LOCAL_MACHINETESTControlSetXXXControlSession Manager. XXX is the Current Control Set Value. And delete any pending file rename operation entries. Then click TEST hive and then click Unload Hive. After that again repeat the process, open the registry menu and click load hive, here type the path %systemroot%system32configSoftware to the Software hive of the prior installation and then click open.
Now you type TEST 2 when you are prompted for the name of the key. Remove any pending file rename operations entries in the following registry keys:
HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnce
HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnceEx
Now click TEST2 hive and then click unload hive. Quit the Registry Editor and then restart your original installation.
This will resolve the stop C000021A error.
Error code 0x80070005 is also known as the “Access Denied” error code because it prevents Windows users from accessing updates on their machines. This error code exists due to a lack of permissions on one’s system files or registry, permissions which are necessary for the updates via Windows Update to complete successfully. Error code 0x80070005 affects multiple versions of the Windows operating system including Windows 8, 8.1, and Windows 10.
The lack of files or registry permissions which result in the presence of error code 0x80070005 on your device may occur based on several reasons. The most common of these relates to the existence of malware programs on your machine. Malware can disrupt and change system files which are required for the update process to occur. Thus, this error code requires a systematic approach to first find missing or corrupt files, as well as cleaning up malware programs that could be preventing your machine from accessing updates.
Windows 10 users can repair error code 0x80070005 by implementing manual repair procedures. These procedures include the installation of tools like SubInACL.exe which enable users to access information about registry keys and files, thus detecting issues that may be preventing them from completing the update process in Windows Update.
These manual repair methods are listed below with clear instructions that even average Windows users can understand and follow. However, if you attempt the procedures and experience any issues that prevent you from successfully fixing error code 0x80070005, contact a Windows repair technician. Also, consider downloading an automated tool since these tools often help users fix PC performance issues that cause error codes to occur within various versions of the Windows operating system.
By logging on as an administrator, Windows users may be able to access updates via Windows Update and thereby fix error code 0x80070005 in Windows 10. Follow the steps below to complete this manual repair method.
Once you are logged on as an administrator, go to Settings to access Windows Update. You will be given the option to install the latest updates. Select this option and wait for the process to be completed. If error code 0x80070005 reoccurs, however, you will need to proceed to manual repair method two which requires that you scan for malware.
This method is very simple. As you scan for malware on your machine, you will be able to detect any malicious programs that may be preventing you from installing updates on your device. This will in turn enable Windows users to clean up their system, fix the error code, and prevent others from occurring.
First, be sure you have a viable antimalware program on your machine. Scan for viruses and other harmful programs using this third-party software. Another option is to run Windows Defender on your machine.
Once you’ve completed the scan and error Code 0x80070005 moved any malware that may be present, attempt to install updates via Windows Update. If the problem causing error code 0x80070005 in Windows 10 is resolved, you will be able to install the updates. However, proceed to the next manual repair method if the error code remains on your device after you have scanned and removed malware programs.
The SubInACL tool enables Windows users to access security details and other information regarding files and registry permissions. Use this tool to fix files and registry permissions by following the instructions below.
Once you’ve been able to run the SubInACL tool and fix files or registry permissions, your machine should be able to access updates. If error code 0x80070005 reoccurs, however, you may need to contact a Windows repair technician to verify if issues unrelated to permissions are causing the error code to occur.
When you receive the error 0x800ccc79 it may hamper your ability to send emails. Therefore it is advisable to fix it to ensure your emails are sent and received without any difficulty.
This Outlook error 0x800ccc79 is quite easy to repair. By following the quick fix 0x800ccc79 error code solutions given below you can resolve this error in just a couple of minutes.
Here’s what you need to do to fix this error right away:
Solution: If the error occurs due to Outlook Express being configured to use the SSL protocol while sending and receiving emails via the web, then to resolve it, you need to allow Outlook Express to bypass the Secure Socket Layer settings.
To do so, click on ‘tools’ and then on ‘Accounts’. Now select the email account that you want to modify.
Now select the ‘Properties’ tab and then click on ‘Advanced Settings’.
Here search for the following text message ‘This server requires a secure connection’. Once you locate it, uncheck all the checkboxes given next to this option. After that save the changes and restart Outlook Express to see bring the changes into effect.
Solution: If the error 0x800ccc79 occurs due to missing or corrupt registry entries, then the best way to fix this error is to download and install a good registry cleaner on your PC.
The registry cleaner will help you clean your corrupt and damaged Windows registry entries and get rid of this error right away. It is suggested you download the registry cleaner tool from a reliable website to avoid any malware or virus downloads simultaneously.
Once you download the registry cleaner on your system, click on scan. The cleaner will scan your computer completely for registry errors and show you the results in a list form.
After the scanning is complete, click on repair to fix the errors.
So, next time, if you or anyone at your office comes across the Outlook Express error 0x800ccc79, you can try these solutions and fix the error immediately without waiting for the network personnel to come and resolve it.
Windows 10 error code 0x80072EE2 usually occurs as a result of a disruption during the upgrade process when users attempt to upgrade their operating system using Windows Update. The disruption may be caused by a loss of Internet connection. Error code 0x80072EE2 may also occur due to problems related to one’s firewall. Common symptoms of this error code include the following:
Upgrade error codes like error code 0x80072EE2 usually occur when disruptions or problems related to system files, or third-party apps prevent Windows Update from completing an upgrade. In the case of error code 0x80072EE2, the most likely cause is a bad Internet connection.
Windows 10 error codes are numerous and so are the solutions to fixing these problems. In most cases, Windows users have access to several manual repair solutions depending on the error code present on their device. These manual repair methods are usually easy to implement, with the exception of a few solutions that require technical knowledge and skills. In such cases, you may need to consider using an effective automated tool or you may contact a Windows repair technician to assist you.
In terms of error code 0x80072EE2, however, no technical skills are required. Manual repair solutions for this error code involve checking and troubleshoot network problems if your connection was disrupted. Also, you may need to check your firewall settings and disable it temporarily to verify whether or not your firewall is preventing you from accessing the upgrade. Further details are provided below.
If for whatever reason you lost Internet connection while attempting to upgrade your operating system via Windows Update, your upgrade will time out and error code 0x80072EE2 in Windows 10 may occur. For this reason, it is important for you to check your connection once you notice the presence of error code 0x80072EE2 on your device.
There are many ways you can verify your Internet connection but one of the simplest ways is to first open your preferred Internet browser and type the web address of a site you normally visit. Once you are able to access the website, you will know for sure that your connection is not an issue. Simply restart your PC and reattempt the upgrade.
If you are unable to complete the upgrade process, however, this simply means that there is another issue causing error code 0x80072EE2 to occur. Proceed to the next manual repair method. This method may also apply if you were unable to connect to the Internet.
Though you may be able to access a website or open your Internet browser, there may be other issues affecting your network that are causing the error code to occur. To verify for certain whether or not the issue causing error code 0x80072EE2 in Windows 10 is related to your network, troubleshoot your network using the Network Troubleshooter tool found on your PC.
Once the issue has been resolved, it is time to verify if the error code is fixed. Open Windows Update then select the option which enables you to access the latest upgrades to your machine. Wait to see if the error code reoccurs or if you can now access the upgrade to your operating system. If the error code reoccurs, move to the next manual repair method.
Another issue that may be causing an error code to occur is your firewall. To verify if your firewall is preventing you from accessing the upgrade, disable your firewall. If you are using third-party security software, simply open the security app and check its firewall settings. Select disable or turn off the firewall.
Restart your computer, then open Windows Update to reattempt to upgrade your device. If this proves successful, you will be able to access the upgrade. Error code 0x80072EE2 in Windows 10 will no longer be present.
If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.