My computer had some problems

要Win10 想 1 Reputation point
2022-10-02T07:15:47.83+00:00

iI rebooted my computer, but it turned blue
STOP: c000021a {Fatal System Error}
The Unhandled Exception in Session Manager system process terminated unexpectedly with a status of 0xc0000005 （0x77b402fd 0x000fe980）.
The system has been shut down

I tried to open the security mode with f8, and went back to the last correct configuration option, but the screen was still blue when I selected it, and it was useless to restart，idk what can i do

Windows
Windows
A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.
4,798 questions
0 comments

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. S.Sengupta 15,511 Reputation points MVP
    2022-10-18T00:18:28.62+00:00
    0 comments
  2. Hania Lian 8,226 Reputation points Microsoft Vendor
    2023-12-20T06:02:15.4133333+00:00

    Hello,

    You get the c000021a (Fatal System Error) error when Windows detects security compromise in a user-mode subsystem, such as WinLogon or the CSRSS (Client Server Run-Time Subsystem). When such a system process is terminated, then your system switches to kernel mode. because it can’t operate without CSRSS or WinLogon.

    Here are a few troubleshooting steps you can try to resolve the issue:

    Boot into Safe Mode:

    Restart your computer and repeatedly press the F8 key during startup.

    Select “Safe Mode” from the boot options menu. Perform a clean boot to check.

    https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd

    If the issue still insists, restart and press the F8 again to disable again Driver Signature Verification and boot

    • Enter Device Manager and locate the faulty device
    • Right-click it and choose Uninstall device
    • Depending on the driver, you may be given the choice of deleting it, but wait for our OK
    • Return Driver Signature Verification and reboot
    • If this works but the related device doesn't work any more, you may need to download a driver from the manufacturer's website.
    • If you cannot boot into Safe Mode, try using System Restore from the Windows Recovery Environment (WinRE).

    In some cases, hardware issues can cause the error. Ensure that all hardware components are properly connected and functioning correctly.

    Hope it helps.

    Regards.

    0 comments