Windows 10: Blue screen on boot after Windows Update

The problem is that I get blue screen on boot, with the error code 0xC000021A. When the percentage on screen hits 100%, it instantly shuts down, and the next time I boot I either get the same error, or I get automatic repair which fails every time. The first time this happened was over a month ago, I think on Friday 11 June; the previous evening I installed a Windows update. The problem has come back several times, most recently being two days ago Friday 23 July again after installing a Windows update.In the beginning I sometimes managed to get rid of the problem for a while after using Sy

:)

 

Startup Blue Screen

Hi Jon,

Startup blue screen error(s) can occur if a problem causes your PC to shut down or restart unexpectedly. It could be due to the following:

• Outdated device software drivers
• Corrupted Windows update system files
• Software/Security conflicts

We would like to know some information:

• Did you get any blue screen stop error codes?
• Have you tried booting in Safe mode?

We suggest that you check this
article about troubleshooting blue screen errors and follow the troubleshooting steps provided there.

We will wait for your response

 

Blue screen and stop code

Hi
Jeferis,

There are a lot of factors for this matter to occur. To isolate the issue, we have some questions for you:

• 
  What activity have you done to
  trigger the NTFS and FAT FILE SYS loop?
  
• 
  were there any error messages?
  
• 
  What troubleshooting steps have you done so far?
  

It is possible that the
Boot
Sequence were corrupted by the previous activity which
triggered the Blue Screen Error and the loop. We recommend that you perform these
suggested troubleshooting
and see if there are any changes:

Startup Repair.


To access the
Startup Repair Screen, turn off the
PC 3-4 times(force shutdown),
while on the Blue screen Error. This will route you to the
Startup repair screen:

Advanced Boot Options > click Troubleshoot > Advanced options > Command Prompt

and run the following command:

Run SFC Scan:  

SFC
will
scan
and
run
an
automatic repair
to any
corrupted system files
that it will detect. We suggest that you perform it twice. To run an
SFC scan, follow these steps:  

• 
  Run
  Command Prompt as Administrator.  
  
• 
  Type
  sfc /scannow
  and hit
  Enter.   
  

Boot Record:

This will fix the corruptions on
boot records or boot
sequence. To run this command, follow these steps:

• 
  Run
  Command Prompt as Administrator.
  
• 
  Type the following command:  
  
  • 
    Bootrec /fixMBR  
    
  • 
    Bootrec /fixBoot
    
  • 
    Bootrec /rebuildBCD
    

Update us on how it goes.

Regards.

 

Blue Screen

Hi,





Blue screens could be caused by problems with your computer’s hardware or with its driver. Still, we
would like to know more about the issue. Please clarify the following:

• Did you get a STOP code?
• Did you install any hardware or driver recently?

For basic troubleshooting steps to resolve blue screen errors, we suggest checking out this
article and simply follow the steps.



Feel free to contact us if you need further help.