Tag Archives: blue screen of death error c000021a

How to fix blue screen error code c000021a

Windows operating system runs on some subsystem. WinLogon or CSRSS are some of the user mode subsystem that helps the windows to run smoothly. But sometimes they get crashed and your windows OS doesn’t respond. Due to the crashing of these subsystems your windows switches to kernel mode and it prompts blue screen error code c000021a. After these happenings your system gets shutdown. To resolve this issue you should go through some manual methods that require a sound technical knowledge. So you can also download Advanced System Repair tool to get rid of this issue automatically. The error code comes to your computer typically as; Continue reading “How to fix blue screen error code c000021a” »