Hi guys welcome back to Wondershare Recoverit your one stop solution to restore deleted
and lost files from any storage device you want we're back with another video where we're going
to help you resolve one of the most common technical errors found on a windows system
yes we're talking about the stop code 0xc00021a
error code it's basically a blue screen error that automatically causes your system to crash
and hinders your workflow now whether you've encountered this blue screen error for the
first time or you're encountering it repeatedly this video will help you fix your system in
every situation and in the end we'll also showcase how you can use Wondershare Recoverit
to retrieve any files that you've lost due to these unexpected crashes
so make sure to watch this video until the end and don't forget to subscribe to the channel
in many cases the error might get triggered by external peripheral devices
if you've connected multiple peripherals on your system make sure to disconnect them one
by one and only keep the useful devices such as your mouse and your keyboard connected this way
if it's a broken USB device that's triggering the blue screen error then you'll be able to resolve
it without any hassle another way to fix the stop code error in windows 10 though is to disable
the driver signature enforcement this is a security feature that's designed
to block drivers that aren't digitally signed by the windows operating system during startup
but sometimes it might end up blocking important drivers from loading properly so if unplugging the
peripherals didn't fix the problem go ahead and disable the driver signature enforcement feature
to do this click the start button and then press and hold the shift key and select restart from
your power menu your system will automatically boot in recovery mode here click troubleshoot
advanced settings and then select startup settings now click on the restart button and
let your system reboot again then finally press f7 to disable the signature enforcement feature
now in case you're still seeing the blue screen error after this
it might be possible that there are corrupt system files which are triggering the problem
if that's the case you can use windows built-in system file checker utility to fix the error
this utility is designed to automatically scan and repair corrupt system files
start by opening the cortana search box and type command prompt then right click on the search
result and select run as administrator once the cmd window opens on your screen simply type sfc
forward slash scan now and press enter and that's it the sfc utility will start scanning all of
your system files and it will automatically repair them if needed now like the system
file checker you can also use dism command to automatically fix various windows related issues
again you'll have to launch this through the command prompt as an administrator and then
execute the following command d i s m forward slash online forward slash clean up dash image
forward slash restore health now the scan can take up to about 10 minutes to complete but once it's
finished restart your computer and see if you encounter the blue screen error again or not if
the stop code error is still persisting now you'll have to perform some more advanced solutions
to fix the error we'll start by rebuilding the boot configuration data through command prompt
for this method however you are going to need a dedicated windows installation media
either a usb drive or a dvd start by inserting the windows installation media onto your system
and then make your pc boot from it once the system successfully boots from the drive
select the language and time zones and then click next on the next screen
select repair your computer and then click troubleshoot and select advanced options
in the advanced startup menu select on command prompt and then execute these commands one by one
bootrec forward slash fix mbr boot rec forward slash fix boot boot rec forward slash scan os
and bootrec forward slash rebuild bcd now reboot your system normally and check
if the blue screen of death has fixed itself or not finally in case none of these previous
solutions have resolved the problem the last resort would be to reset the bios itself
now resetting your bios might sound confusing but it's actually a relatively easy process
all you have to do is repeat the same process that we've just performed in the previous step to boot
your system into advanced startup using your windows installation media then in the advanced
startup window select uefi firmware settings and click restart to reboot your system normally and
this should resolve your blue screen error now since this stop code error usually crashes your
system unexpectedly many people actually end up losing important files in the process if the same
thing has happened to you then you can use our data recovery software to restore your lost data
recover it will perform an in-depth scan on your hard drive and list all files that were either
deleted intentionally or have disappeared due to errors and unexpected crashes
you can then manually select the files that you want to restore and save them onto your hard
drive with just one click and recover it supports a range of different file formats including pngs
jpegs mpeg4s etc basically it means you'll be able to restore all of your files without
any hassle so follow these steps to recover unsaved or deleted data using Wondershare Recoverit
first install and launch recovery on your system and then select the location
where the files were lost recover it will now start scanning that selected location
and find all files that are missing once the scanning process completes select the files
that you want to retrieve and click recover in the bottom right corner or if you want you
can also tap the preview button in order to see a preview of the file before you restore it the tool
will then automatically retrieve the selected files and save them in your selected location
on a side note if your computer has crashed and it can't be open normally you can actually
use recover it to create bootable media and recover data details for this can be found
in a step-by-step guide on the official recovery website which is recoverit.wondershare.com forward
slash guide so that's going to wrap up our video on how to fix the windows stop code 0xc00021a
error if you found this video helpful make sure to drop us a like and let us
know in the comment section if you face any other issues during this process and if you
want to see more videos like this in the future then don't forget to subscribe to the channel