Fatal Systems Error
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adding citations to reliable sources. Unsourced material may be challenged and removed. (January 2011) (Learn how and when to remove this template message) A fatal system error, also known as a system crash, stop error, kernel error,
Fatal System Rpg
or bug check, is when an operating system halts at the moment it reaches a windows 10 error c000021a condition where it can no longer operate safely. In Microsoft Windows, a fatal system error can be deliberately caused from a kernel-mode
Error 000021a Windows 10
driver with either the KeBugCheck or KeBugCheckEx function.[1] However, this should only be done as a last option when a critical driver is corrupted and is impossible to recover. This design parallels that in OpenVMS. The http://answers.microsoft.com/en-us/windows/forum/all/blue-screen-error-c000021a-fatal-system-error/549075f8-f695-4047-b747-2b4e118e1ffd Unix kernel panic concept is very similar. Overview[edit] When a bug check is issued, a crash dump file will be created if the system is configured to create them. This file contains a "snapshot" of useful low-level information about the system that can be used to debug the root cause of the problem. If the user has enabled it, the system will also write an entry to the system event log. The https://en.wikipedia.org/wiki/Fatal_system_error log entry contains information about the bug check (including the bug check code and its parameters) as well as a link which will report the bug and provide the user with prescriptive suggestions if the cause of the check is definitive and well-known. Next, if a kernel debugger is connected and active when the bug check occurs, the system will break into the debugger where the cause of the crash can be investigated. If no debugger is attached, then a blue text screen is displayed that contains information about why the error occurred, which is commonly known as a blue screen or bug check screen. The user will only see the blue screen if the system is not configured to Automatically Restart (which became the default setting in Windows XP SP2). Otherwise, it appears as though the system simply rebooted (though a blue screen may be visible briefly). In Windows, bug checks are only supported by the Windows NT kernel. The corresponding system routine in Windows 9x, named SHELL_SYSMODAL_Message, does not halt the system like bug checks do. Instead, it displays the infamous BSoD (Blue Screen of Death) and allows the user to attempt to continue. The Windows DDK and the WinDbg documentation both have reference information about most bug checks. The WinDbg package is av
or BSOD error or kernel error). The stop error message usually reads: STOP: c000021a {Fatal System Error} The Windows Logon Process system process terminated unexpectedly with a status of http://windows-exe-errors.com/stop-c000021a-fatal-system-error/ 0xc06d007e (0×00000000 0×00000000). The system has been shut down. What Causes Stop Error c000021a? Windows STOP c000021a Fatal System Error occurs when the Windows kernel detects that either Csrss.exe or Winlogon.exe service processes have stop responding or have failed to load. When this happens, Windows stops the system completely and then generates the fatal system error message. There can be many reasons why you are experiencing this error: Corrupt fatal system or missing hardware drivers Faulty hardware (i.e. Memory) Windows service pack has failed to install correctly. Your computer has corrupted system files either due to a faulty shutdown or virus/malware. Windows System Restore failed during the rollback process. Third-party software applications on your computer are causing kernel level conflicts. Known Solutions NOTE: The solutions listed below are assuming that you are receiving the stop error AFTER Windows is running. There fatal system error are some cases where users are experiencing the stop error during the system boot procedure and thus cannot get to the Windows desktop to perform the task listed below in order. Option 1: Make Sure Your PC Drivers Are Updated (DO THIS FIRST!) Missing or corrupt drivers are responsible for many bluescreen errors. Before taking the steps below, we recommend you perform a free driver scan with DriverFinder and make sure all your drivers are up-to-date. Option 2: Run Chkdsk Command Run chkdsk: Go to a command prompt and type "chkdsk /f". Option 3: Take Out The Battery Unplug your computer and take out the battery. (It looks like a watch battery on your motherboard). Plug your computer back in and restart it. Shutdown your computer and unplug it again. Place your battery back in, plug in your computer, and restart it. Check to see if your are still receiving the stop error message. Option 3: Test or Swap Out Your Memory (RAM) Bad or faulty RAM is known to cause many bluescreen errors and can usually be replaced for cheap. Before swapping it out, run Memtest86+ to test OVERNIGHT to see if it reports any errors. If you are not comfortable opening your PC and replacing