How to Fix Windows 10 Error 0xc000021a.
The Windows 10 error 0xc000021a is a bug check error that usually includes ‘STATUS_SYSTEM_PROCESS_TERMINATED’. It can result in a BSOD and even a boot loop that is difficult to break out of without booting into safe mode. If you need to fix Windows 10 error 0xc000021a, I can help.
The error occurs when either WinLogon or Client Server Runtime Subsystem (CSRSS) presents an error or is corrupted. Windows thinks it has been hit by malware or security is otherwise compromised and stops booting. There are a couple of things we can do to fix the error before having to perform a system reset or restore.
To address this error, we need to use our old friends sfc /scannow or DISM. If you cannot boot into the desktop to access CMD, boot into safe mode using install media and select ‘Safe Mode with Command Prompt’ from the options.
This tutorial will apply for computers, laptops, desktops,and tablets running the Windows 10 operating system (Home, Professional, Enterprise, Education) from all supported hardware manufactures, like Dell, HP, Acer, Asus, Toshiba,Lenovo, and Samsung).