How To Diagnose STOP Errors

Error codes may generate on your computer at any time while it is operational—while booting up, when you are working on it, or while shutting down. Whenever they occur, they hamper your work and cause undesired frustrations. When errors become a nightmare, so many times we wish there was something we could do to fix it ourselves. Well don’t get disheartened so easily because computer errors are not always the demon they might seem to be. Most of the time, you can fix them by performing a few simple tasks to get rid of them for good.

To find out how to solve PC errors, let’s take a look at a few examples.

Example 1: “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.”

This error message is usually displayed in certain editions of Windows Server 2003 and Windows XP when the Windows NT kernel detects failure of Winlogon.exe or Csrss.exe processes. This condition may arise due to several problems, such as the existence of mismatched system files, incomplete Service Pack installation, incompatible software and incorrect backup restore of certain files on the hard disk.

To resolve this issue, you first need to find out which of the two files, Winlogon.exe or Csrss.exe, generated the stop error. You can do this by enabling logging of Dr. Watson errors. Next, you need to resolve the problems with the faulty file. If the stop error starts occurring soon after you install a new software or device driver, try to remove it. Most of the time, uninstalling this new software will help you get rid of the error message.

Example 2: Error 0x80072ee2

Windows update error 0x80072ee2 occurs when the Windows update client on your computer fails to receive information from the Windows Update or the Microsoft Update Web site.

To resolve the error in this case, you need to do the following tasks. After each task, try to run the update again.

1. Open a couple of websites to see if your Internet is working. If you are unable to access the Web pages, check your Internet Explorer settings or contact your Internet Service Provider for a solution.
2. Check the configuration of your firewall to ensure that Windows updates are not blocked by it.
3.Turn off any download accelerator program that may be running on your computer.
4. Add Windows Update and Microsoft Update Web site in the Trusted sites list of your Internet Explorer.
5.Remove Microsoft Update and Window Update from hosts file.
6.Clear the setting of the WinHTTP proxy.

Example 3: "A problem is preventing Windows from accurately checking the license for this computer. Error Code: 0x80004005"

This error message is displayed when you try to upgrade from Windows 98 to Windows XP and an antivirus program running on the system is interfering with the upgrade process or if a Windows activation file has been modified manually. You may use the following two methods to work around this problem:

• Method 1: Perform In-place upgrade from Windows 98 to Windows XP.
• Method 2: Open Recovery Console and the replace Wpa.dbl, Pidgen.dll, Actshell.html, Licdll.dll, Regwizc.dll, Licwmi.dll, and Wpabaln.exe files to repair