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Posted 27 March 2013 - 10:35 AM
Posted 27 March 2013 - 03:49 PM
I don't have Windows 8 but I would consider disabling automatic restart to get the full text of the error mesage and then post it
Posted 28 March 2013 - 04:21 PM
I looked up that STOP code, I found this on Microsoft's Answers community.
This error occurs when a user-mode subsystem, such as WinLogon or the Client Server Run-Time Subsystem (CSRSS), has been fatally compromised and security can no longer be guaranteed. In response, the operating system switches to kernel mode. Microsoft Windows cannot run without WinLogon or CSRSS. Therefore, this is one of the few cases where the failure of a user-mode service can shut down the system.
Mismatched system files can also cause this error. This can occur if you have restored your hard disk from a backup. Some backup programs might skip restoring system files that they determine are in use.Resolving the Problem
Running the kernel debugger is not useful in this situation because the actual error occurred in a user-mode process.
Resolving an error in a user-mode device driver, system service, or third-party application:Because bug check 0xC000021A occurs in a user-mode process, the most common culprits are third-party applications. If the error occurred after the installation of a new or updated device driver, system service, or third-party application, the new software should be removed or disabled. Contact the manufacturer of the software about a possible update.
If the error occurs during system startup, restart your computer, and press F8 at the character-based menu that displays the operating system choices. At the resulting WindowsAdvanced Options menu, choose the Last Known Good Configuration option. This option is most effective when only one driver or service is added at a time. If this does not resolve the error, try manually removing the offending software. If the system partition is formatted with file allocation table (FAT), use an MS-DOS startup disk to gain access to the computer's hard disk. If the system partition is formatted with NTFS file system, you might be able to use Safe Mode to rename or delete the faulty software. If the faulty software is used as part of the system startup process in Safe Mode, you need to start the computer using the Recovery Console in order to access the file. If a newly installed piece if hardware is suspected, remove it to see if this resolves the issue.
Try running the Emergency Recovery Disk (ERD) and allow the system to repair any errors that it detects.
Resolving a mismatched system file problem: If you have recently restored your hard disk from a backup, check if there is an updated version of the Backup/Restore program available from the manufacturer. Make sure the latest Windows Service Pack is installed.
It was for a Windows 7 OS, but I'm assuming the codes might remain the same?
Posted 29 March 2013 - 04:56 AM
Posted 29 March 2013 - 07:54 AM
If you don't have a system repair disc or the system disc itself, contact ASUS and find out how to get what you need
--- See if they have an on-line method to order what you need since it will be cheaper than if you go through sales
--- Do you have a warranty that will cover fixing your computer?
------ If so I would go that route and at the same time have a repair disc created
You can also refer to Windows 8 pro BSOD 0xc000021a error if you want to get into the technicalities involved in trying to fix it yourself but it appears to me you still need a system repair disc
Since the system takes about 15 minutes before restarting it might be possible to get into Safe Mode and try Last Known Configuration
--- I'm don't have Windows 8 but check this out just in case it's possible to find out whether or not you can get into Safe Mode
How to enable the F8 key to start Safe Mode in Windows 8
Posted 03 March 2016 - 06:43 PM
I just had a customer bring me a Toshiba laptop with the same issue. Auto repairs didn't work, SFC and CHKDSK also failed. As soon as I put the drive into my dock it just sounded horrible. Turns out the hard drive was shot and only at 8% health. HDD replacement was my answer.
Posted 03 March 2016 - 07:01 PM
Do you realize you dug up a 2-year old thread?
Yes but the info is for someone that googles the stop code and brings them here. Just as I did
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