How to Fix Blue Screen Error Code 0xC000021A in Windows 10/11?

Thanks for replying! The trouble is, I’m totally rubbish at working with PC software. Do you know how to reinstall Windows without booting to desktop, and since I bought 7, 8 & 10 online, and don’t have an install disk?

It would be best to reinstall your windows, speaking from experience if you’ve tried all of the steps mentioned here and the hardware isnt at fault, then reinstalling would be the way to go.

she slammed on the keyboard which made your hard drive go bad.

Hi Kevin.

I sent you a message on this forum 6 days ago.
Would be great to get a reply.

I did method do. I did all the instructions written but it still didn’t work. I think the 2nd method is the easiest one to do.

Okay, i would suggest that you should do a clean install.

After 0xc0000001 error comes on the screen the system just shuts off completely

Hi sorry i have been away with work - Ok so after resetting the PC it made things worse - Now the PC comes on does a blue screen again as normal… restarts and then gives a new error code 0xc0000001

Hi Kevin Arrows,

Really thank you about this article, it resolved my problem!!!

I was using months ago a notebook Asus K52F with w10 Windows 10 when it stopped with this 0xc000021a. I began to use Linux Mint Live CD since it (recommended). But today I needed to resolve it when I saw your page. It worked when I did “…you have to boot it using force drivers to have signature disabled option available inside Advanced Boot Options”. It worked like a charm! Automatic I turned off internet wireless after it, see below why.

I saw to the link https://www.asus.com/us/support/FAQ/1016000
What I could understand Asus can stop from hibernation/sleep because sometimes after update windows 10 changes Intel Management Engine Interface driver, resulting a a compatibility error. Then it recommended to download and change the driver.

I will do it. I hope that it can help others

Bye!

Have you tried system restore from the advanced options?

Hi, I followed your instructions but windows still failed to boot. My regback folder didn’t contain BCD-Template or COMPONENTS so I copied them from another windows 10 laptop, but it still failed.

says no system restore points have been created on your computer systems drive

Following this it gives the options to continue, turn off pc, use a device or troubleshoot … when you press troubleshoot it says refresh pc, reset pc or advanced options.

Does it gives you an option to go to Advanced Mode?

I can’t do that. Anyways, I thank you so so so much for giving up your time to help me. I really appreciate that. I’ll figure out a way…hopefully. Once again I can’t thank you enough. :slight_smile:

“No restore points have been created on your computer’s system drive.” I’m sorry nothing is working. :((

It took me back to the same place. :frowning:

It ended up taking me back here. :frowning:

All you need to do is get back to command prompt, and type without thinking. First type STEP 1 commands, then STEP 2 and so on.

Try the following:

Step 1: Type
cd WindowsSystem32Config

Step 2: Copy

copy BCD-Template Temp and Press Enter

copy COMPONENTS Temp and Press Enter

copy DEFAULT Temp and Press Enter

copy SAM Temp and Press Enter

copy SECURITY Temp and Press Enter

copy SOFTWARE Temp and Press Enter

copy SYSTEM Temp and Press Enter

STEP 3

ren BCD-Template BCD-Template.bak and Press Enter

ren COMPONENTS COMPONENTS.bak and Press Enter

ren DEFAULT DEFAULT.bak and Press Enter

ren SAM SAM.bak and Press Enter

ren SOFTWARE SOFTWARE.bak and Press Enter

ren SECURTY SECURITY.bak and Press Enter

ren SYSTEM SYSTEM.bak and Press Enter

STEP 4
copy C:WindowsSystem32ConfigRegbackBCD-Template C:WindowsSystem32ConfigBCD-Template and Press Enter

copy C:WindowsSystem32ConfigRegbackCOMPONENTS C:WindowsSystem32ConfigCOMPONENTS and Press Enter

copy C:WindowsSystem32ConfigRegbackDEFAULT C:WindowsSystem32ConfigDEFAULT and Press Enter

copy C:WindowsSystem32ConfigRegbackSAM C:WindowsSystem32ConfigSAM and Press Enter

copy C:WindowsSystem32ConfigRegbackSECURITY C:WindowsSystem32ConfigSECURITY and Press Enter

copy C:WindowsSystem32ConfigRegbackSOFTWARE C:WindowsSystem32ConfigSOFTWARE and Press Enter

copy C:WindowsSystem32ConfigRegbackSYSTEM C:WindowsSystem32ConfigSYSTEM and Press Enter

then test, and let me know.