Windows 10 Troubleshooting 0xc0000021A - Microsoft Community

hi all,

i've had quite hard time trying troubleshoot error code 0xc0000021a upon boot, resulting in blue screen.
so far i've managed boot machine disabling driver signature enforcement using advanced startup recovery options, others won't work (even safe mode).
this leaves machine vulnerable , unusable applications, i'm looking fix issue.

the issue popped recently, after installing several programs associated graphics , games.
i've tried uninstalling (and re-installing afterwards) of components trying fix issue, without luck.

i've ran malwarebytes scans, windows defender scans, kaspersky's tdsskiller , other ones - of them 0 infections found.

other options in advanced startup recovery menu don't seem either:
- system restore isn't available there no restore points before point when problem occurred.
- windows startup repair can't manage fix issue.
- system image recovery isn't available there no recent images.

chkdsk finds no errors or bad sectors.

sfc failed several times after managed boot machine. until ran cmd in advanced startup recovery options described here, said ran succesfully once - when running again there remaining issues with c:\windows\system32\aepic.dll in csb log:
hashes file member \??\c:\windows\system32\aepic.dll do not match actual file [l:9]'aepic.dll'
i don't want grab dll use replace net, since don't know reliable sources these kind of dlls.

also, windows 10 date.

is there can me out troubleshooting issue?
i don't know anymore , re-installing machine isn't option @ moment.
any hint or direction in appreciated, in advance!

kind regards,
kevin

***post moved moderator appropriate forum category.***

hi,

issue can caused hardware such hard drive or cabling issues among many.

troubleshoot blue screen errors
http://windows.microsoft.com/en-us/windows-10/troubleshoot-blue-screen-errors 

=============

stop: 0xc000021a

can difficult problem solve , may indeed need technical real computer shop (one own in-house service) or system maker's support.

stop: 0xc000021a <-- read link
http://www.faultwire.com/solutions-fatal_error/status-system-process-terminated-0xc000021a-*1314.html

===============================================

can try option 5 here , run startup - repair see if helps.

would need make bootable usb or dvd using media creation
tool or other options.

how boot advanced startup options in windows 10
http://www.tenforums.com/tutorials/2294-advanced-startup-options-boot-windows-10-a.html

installing windows 10 using media creation tool - create media then
boot it.
http://windows.microsoft.com/en-us/windows-10/media-creation-tool-install

windows 10 includes special methods refresh (keep files , settings)  or a 
reset (new install removing all).

refresh part of reset in windows 10
http://windows.microsoft.com/en-us/windows-10/refresh-is-part-of-reset-in-windows-10

how refresh windows 10
http://www.tenforums.com/tutorials/4090-refresh-windows-10-a.html

how reset windows 10

http://www.tenforums.com/tutorials/4130-reset-windows-10-a.html

====================================================

may need thoroughly check hard drive errors (be sure inspect cable best can).

after checking drive , cabling.thoroughly check hard drive errors using advanced methods , the manufactuter's  diagnostic utilities.

these more efficient methods check disk. <- advanced methods.

command prompt of the windows 10 disk (boot it) :

chkdsk /f /r
(space after k , before /  , after f , before / )

reboot

sfc /scannow
(space after c , before / )

reboot

=====================================

even more thorough checking : <-- manufacturer's diagnostic utilities.

(the old 302602 links not valid diagnostic links.)

diagnostic utilities manufacturer - run 1 hard drive
http://www.techsupportforum.com/hardware-support/hard-drive-support/462298-no-ide-device-found.html

corrected list of 6-09-2010

fujitsu hard drives: diagnostic utilities here
http://www.fujitsu.com/emea/products/hdd/ 

hitachi hard drives: diagnostic utilities here
http://www.hitachigst.com/support/downloads/ 

ibm hard drives: use hitachi utilities

toshiba hard drives: use hitachi or maxtor utilities

maxtor hard drives: diagnostic utilities here (now seagate)
http://www.seagate.com/www/en-us/support/ 

quantum hard drives: use maxtor utilities

seagate hard drives: diagnostic utilities here
http://www.seagate.com/www/en-us/support/downloads 

conner hard drives: use seagate utilities 

samsung hard drives: diagnostic utilities here
http://www.samsung.com/global/business/hdd/ 

western digital hard drives: diagnostic utilities here
http://support.wdc.com/product/download.asp?lang=en 

trial versions of 1 of these "might" help.

speedfan
http://www.almico.com/sfdownload.php 

hd tune
http://www.hdtune.com/

hope helps.
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rob brown - microsoft mvp <- profile - windows , devices it : bicycle - mark twain said right.

Windows / Windows 10 / Performance & system failures / PC