Tip & How-To about Computers & Internet

Blue Screen Stop Error Code C000021a {Fatal System Error}

This article is intended for advanced computer users. If you are not comfortable with advanced troubleshooting, you might want to ask someone for help or contact Technical Support.

When you use a server or a workstation that is running one of the operating systems that is listed in the "Applies to" section, you may receive the following error message: STOP: c000021a {Fatal System Error}
The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000034 (0x00000000 0x0000000)
The system has been shutdown. Note The parameters in parentheses are specific to your computer configuration and may be different for each occurrence.

CAUSE:

The STOP 0xC000021A error occurs when either Winlogon.exe or Csrss.exe fails. When the Windows NT kernel detects that either of these processes has stopped, it stops the system and raises the STOP 0xC000021A error. This error may have several causes. Among them are the following:

  • Mismatched system files have been installed.
  • A Service Pack installation has failed.
  • A backup program that is used to restore a hard disk did not correctly restore files that may have been in use.
  • An incompatible third-party program has been installed.
The most effective way of resolving this issue is through:

Last known good configuration load
If the previous steps in this article do not resolve the problem, start the computer by using the last known good configuration. To start the computer by using the last known good configuration, follow these steps:
Note
Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.
  1. Click Start, and then click Shut Down.
  2. Click Restart, and then click OK.
  3. Press F8 at the indicated time:
    • For an x86-based computer: When a screen of text appears and then disappears , press F8. (The screen of text may include a memory test, lines about the BIOS, and other lines.) There may also be a prompt that tells you when to press F8.
    • For an Itanium architecture-based computer: After you make your selection from the boot menu, press F8. There may be a prompt that tells you when to press F8.
  4. Use the arrow keys to select Last Known Good Configuration, and then press ENTER.

    NUM LOCK must be off before the arrow keys on the numeric keypad will function.
  5. Use the arrow keys to highlight an operating system, and then press ENTER.

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no operating system found


When you try to start a Windows XP-Based computer, you may receive an error message that the operating system is not found.
To resolve this issue, use one of the following methods, depending on your situation.

Contact your hardware manufacturer

Your best bet may be to contact the manufacturer of your computer or your hard disk. The manufacturer may have a utility that you can use to perform a more detailed scan for damaged areas of the disk and help verify the correct BIOS settings. However, be aware that the damage to your hard disk may be serious. Sometimes this means that your only solution is to replace your hard disk.

If a fix or workaround is not available, you can use the "Advanced Troubleshooting" section to try to resolve this issue.

Advanced troubleshooting

This section is intended for advanced computer users. If you are not comfortable with advanced troubleshooting, you might want to ask someone for help or contact support. For information about how to contact Microsoft support, visit the following Microsoft Web site:http://support.microsoft.com/contactus/
Method 1: Verify the BIOS settingsVerify the computer's BIOS settings to make sure that BIOS lists and recognizes the hard disk. See the computer documentation or contact the hardware manufacturer for information about how to verify the BIOS settings.

After you verify that the computer's BIOS detects the hard disk, restart the computer, and then test to determine whether the issue is resolved. If the issue is not resolved, or if the computer's BIOS cannot detect the hard disk, you may have issues with your hardware. Contact the hardware manufacturer to inquire about how to resolve this issue. You may have to replace the hard disk.

For information about how to contact hardware manufacturers, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:65416 Hardware and software vendor contact information, A-K

60781 Hardware and software vendor contact information, L-P

60782 Hardware and software vendor contact information, Q-Z
Method 2: Use Recovery ConsoleUse the fixmbr command in the Windows XP Recovery Console to repair the MBR of the startup partition.

Warning This command can damage your partition table if a virus is present or if a hardware problem exists. If you use this command, you may create inaccessible partitions. We recommend that you run antivirus software before you use this command. We also recommend that you backup your data before you use this command. If the fixmbr command detects an invalid or non-standard partition table signature, the fixmbr command prompts you for permission before rewriting the MBR. The fixmbr command is supported only on x86-based computers.

Sep 13, 2013 | Computers & Internet

1 Answer

no operationg system


operating systems not found

To resolve this issue, use one of the following methods, depending on your situation.

Contact your hardware manufacturer

Your best bet may be to contact the manufacturer of your computer or your hard disk.
The manufacturer may have a utility that you can use to perform a more detailed scan for damaged areas of the disk and help verify the correct BIOS settings.
However, be aware that the damage to your hard disk may be serious. Sometimes this means that your only solution is to replace your hard disk.

If a fix or workaround is not available, you can use the "Advanced Troubleshooting" section to try to resolve this issue.

Advanced troubleshooting

This section is intended for advanced computer users.
If you are not comfortable with advanced troubleshooting, you might want to ask someone for help or contact support.
For information about how to contact Microsoft support, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/
(http://support.microsoft.com/contactus/)
Method 1: Verify the BIOS settings Verify the computer's BIOS settings to make sure that BIOS lists and recognizes the hard disk. See the computer documentation or contact the hardware manufacturer for information about how to verify the BIOS settings.

After you verify that the computer's BIOS detects the hard disk, restart the computer, and then test to determine whether the issue is resolved.
If the issue is not resolved, or if the computer's BIOS cannot detect the hard disk, you may have issues with your hardware.
Contact the hardware manufacturer to inquire about how to resolve this issue. You may have to replace the hard disk.

For information about how to contact hardware manufacturers, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:
65416
(http://support.microsoft.com/kb/65416/ )
Hardware and software vendor contact information, A-K

60781
(http://support.microsoft.com/kb/60781/ )
Hardware and software vendor contact information, L-P

60782
(http://support.microsoft.com/kb/60782/ )
Hardware and software vendor contact information, Q-Z
Method 2: Use Recovery Console Use the fixmbr command in the Windows XP Recovery Console to repair the MBR of the startup partition.
Warning This command can damage your partition table if a virus is present or if a hardware problem exists.

If you use this command, you may create inaccessible partitions.
We recommend that you run antivirus software before you use this command.
We also recommend that you backup your data before you use this command.
If the fixmbr command detects an invalid or non-standard partition table signature, the fixmbr command prompts you for permission before rewriting the MBR.
The fixmbr command is supported only on x86-based computers.

Aug 02, 2013 | Acer Computers & Internet

1 Answer

get error sku112.cab. when trying to install office home and student2007


To resolve this error permanently, you must repair the Office 2003 installation. This resolution is intended for advanced computer users. If you are not comfortable with advanced troubleshooting
To repair the Office 2003 installation, use the Local Installation Source Tool. You can download the Local Installation Source Tool from the following Microsoft Office 2003 Resource Kit Web site: http://www.microsoft.com/downloads/details.aspx?FamilyId=10FA7AA3-695B-42C3-9045-B812BA0FED3E&displaylang=en (http://www.microsoft.com/downloads/details.aspx?FamilyId=10FA7AA3-695B-42C3-9045-B812BA0FED3E&displaylang=en) After you have downloaded the tool, double-click the LISTool.exe program file on your hard disk to start the Setup program. Follow the instructions on the screen to complete the process.

Feb 14, 2010 | Microsoft Office Home and Student 2007...

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