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21a Blue Screen Windows 7


Sign in to add this to Watch Later Add to Loading playlists... Now click open and name it as “Test”. Close the registry editor and reboot the server in normal mode. You can try basic troubleshooting steps like "system restore" before reinstall. Source

I built this machine myself and haven't had any issues with it until now. Below is a list of changes I recall since the issue started up.1. Loading... retronuggetdev 137,184 views 1:30 Stop 0x0000007b when installing windows - Duration: 4:07. http://answers.microsoft.com/en-us/windows/forum/all/blue-screen-error-c000021a-fatal-system-error/549075f8-f695-4047-b747-2b4e118e1ffd

Stop C000021a Windows 7

Keep getting c000021a unknow hard error bsod (might be caused by Dota2) BSOD before desktop, fresh install (c000021a) C000021a BSOD Can't find your answer ? Fix 0xC000021A on Windows XP Fix #1: Boot into Last Known Good Configuration If you boot your Windows XP system into the Last Known Good Configuration mode, it forces your computer save and quit. There can be many reasons why you are experiencing this error: Corrupt or missing hardware drivers Faulty hardware (i.e.

CONTRIBUTE TO OUR LEGAL DEFENSE All unused funds will be donated to the Electronic Frontier Foundation (EFF). Don't forget to first try using Last Known Good Configuration option to boot the computer before using restore or recovery features. Since we know the correct ControlSet is “1”, navigate to Controlset001 and access the following key HKEY_LOCAL_MACHINE\Test\ControlSet001\Services\mountmgr Selecting “mountmgr”, on the right side pane look for “NoAutoMount” dword value & modify Windows 10 Error C000021a This method can work if error is being caused by any of the drivers that are loading at startup.

Show more Language: English Content location: United States Restricted Mode: Off History Help Loading... C000021a Windows Xp When the windows logo screen will appear, you will suddenly see the c000021a Fatal System Error.Step 2 -- Last Known Good ConfigurationAs a result, the Advanced Boot Options screen will appear. Microsoft Windows cannot run without WinLogon or CSRSS.

If you are not comfortable opening your PC and replacing your memory, bring your computer to a qualified technician.

Description Windows user-mode subsystems are: WinLogon or Client Server-Run Time Subsystem (CSRSS). Stop C00021a Fatal System Error The Windows Subsystem System Process Terminated Unexpectedly It only occurs at nighttime after I am done gaming. driver file issues. If your PC is crashing to fast once in Windows, start your computer in Safe Mode by pressing the F8 key during system boot.

C000021a Windows Xp

Does anyone know why this would cause a BSOD? To run System Restore in Safe Mode, follow these steps: Boot the computer Press the F8 key before the Windows Vista or 7 logo appears At the Advanced Boot Options screen, Stop C000021a Windows 7 Place your battery back in, plug in your computer, and restart it. Stop C00002la Fatal System Error Windows 7 The Verification Knowndll Failed If you do not have WinRE installed on the machine you can boot from either Windows Server 2008/R2/Windows 7 boot disc.

Working... this contact form Sign in to report inappropriate content. If Fix #1 above worked for your system, you need to uninstall that piece of software or driver. bootmgr error boot back into recovery dvd this time you should notice windows is actually reporting c:windows. C000021a Windows 10

BetaFlux 3,554,761 views 6:36 How To Repair Blue Screen and Safe Mode - Duration: 6:36. Any ideas? © 2016 Microsoft Corporation. Hit enter key on the keyboard. have a peek here Fix #3: Run System Restore If System Restore was turned on for your computer, you can try and restore the system to an earlier restore point.

This can occur if you have restored your hard disk from a backup. Fatal System Error C00021a Fix Additionally, entries under HKEY_LOCAL_MACHINE\System\MountedDevices key will be missing especially for Windows Boot Drive, which results in this BSOD. Hovewer looks like the problem still was in mounting nonexisted devices.

Make sure to note your Windows version (XP, Vista, 7 or 8) before you download EasyRE.

Choose Troubleshoot > Advanced Options > Startup Settings Click Restart Press the F7 key to boot into Windows with the driver signature enforcement disabled Fix #6: Reset In Windows 8/8.1/10, you Terms of Use Trademarks Privacy & Cookies

Skip navigation UploadSign inSearch Loading... I do have a screen timeout setting of 15 minutes. Stop C000021a Fatal System Error Several functions may not work.

Skip navigation UploadSign inSearch Loading... IRQL_NOT_LESS_OR_EQUAL; UNEXPECTED_KERNEL_MODE_TRAP Any BSOD expert ? Watson is created under the following folder path: C:\Documents and Settings\All Users.WINNT\Application Data\Microsoft\Dr Watson If no log file was created by the utility software, you can also use the Userdump.exe utility Check This Out edit this post Articles & News Forum Graphics & Displays CPU Components Motherboards Games Storage Overclocking Tutorials All categories Chart For IT Pros Get IT Center Brands Tutorials Other sites

Make sure you are loading the hives from your Windows. Click Yes if prompted. alican smalk 7,283 views 1:39 How-To Repair Blue Screen and Safe Mode - Duration: 6:36. Updated video drivers3.

Windows cannot run properly without WinLogon or CSRSS.Step 1 -- Error c000021aThis blue screen of death stop error c000021a will be displayed when your system is in normal booting process.