Windows 8 Pro cannot boot - Error 0xC000021a

Anonymous
2012-11-25T18:10:13+00:00

Hi

I upgraded my son's laptop from Windows 7 to Windows 8 Pro. I has been working fine for a few weeks. But now when booting It halts iwth the error code 0xc000021a. I have tried the following options

Refresh - this fails with the error 0xc000021a

System Restore - this fails with 0xc000021a

Safe mode boot does not work

I can start the cmd console

Any suggestions as to how to proceed?

Windows for home | Previous Windows versions | Performance and system failures

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  1. Anonymous
    2016-12-11T06:54:04+00:00

    bluescreen message  YourPCdid not start correctly    Oxc000021a  .  i hace HP All in one PC,,  ccame with win 8 and free upgrade Win 10.

    i do not have any disks all downloaded from Microsoft.  How can I fix this?

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  2. Anonymous
    2016-09-13T15:03:02+00:00

    Surface is really a piece of junk! There is always problem signing in. Works for a while then all of sudden yo can't sign in. Error 0xc000021a or whatever it was is an example. Then there is answers on how to fix this problem but the explanation is only for people who knows computerese not for the general public who need to use their computer without knowledge of the technical working of a computer. So how do you fix this problem. If you can't sign in you can't do anything. I should have not have to be a computer  nerd to sign into my computer.

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  3. Anonymous
    2016-09-13T11:13:28+00:00

    Me too

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  4. Anonymous
    2016-09-13T11:08:35+00:00

    Me too. I do not know what to do.

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  5. Anonymous
    2016-08-20T14:35:00+00:00

    Ideally, the drive or dvd must be ≥4GB because windows 8 ISO files have around 3-4GB size. DVD±R/RW have 4.7GB size and thumbdrives and sd cards have sizes in powers of 2, e.g. 1/2/4/8/16 GB etc. I have a 8GB thumbdrive and I am downloading the iso file now

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