1.    12 Oct 2017 #1
    Join Date : Aug 2015
    Posts : 58
    windows 10 pro

    Error 0xc000021a


    My brother turned on is computer and got this code 0xc000021a , I wondered if anybody can help please.

    He tells me that he has tried all different options but nothing works.

    Click image for larger version. 

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    Last edited by samIOW; 12 Oct 2017 at 12:20.
      My ComputerSystem Spec
  2.    12 Oct 2017 #2
    Join Date : Oct 2016
    Caledon, Ontario, Canada
    Posts : 3,926
    Windows 10 Pro Build 1703

    Hi samIOW.

    What kind of things has he tried? Have you booted to the Advance Startup options and tried a system restore and repair options?

    Boot to Advanced Startup Options in Windows 10

    Before doing anything I would suggest you ensure his data is safely backed up off machine. You can use this procedure to create a bootable disc that allows you to use the standard windows interface to copy.

    Windows 10 Recovery Tools - Bootable Rescue Disk

      My ComputerSystem Spec
  3.    12 Oct 2017 #3
    Join Date : Aug 2015
    Posts : 58
    windows 10 pro
    Thread Starter

    Hi Ken,

    Thanks for your reply. As far as I know he has tried everything including repair although I am not sure if he has the restore option. I will ask him and get back to you.

    Thanks for the link too

    Cheers, Sam
      My ComputerSystem Spec


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