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
    2013-07-29T05:54:52+00:00

    Resolve this error by replacing files "shel32.dll" and "timedate.сpl" (folder "system32") on the original.

    In my case, the error caused by replacing system files third party software.

    Maybe will help you.

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  2. Anonymous
    2013-07-17T12:34:43+00:00

    Amir's fix works.  I just used it.  Thanks buddy.  Aronhugos' fix is garbage.  Start by forcing drivers to have signature disabled within win pro 64 bit boot options and I added a step and ran advanced system care pro 6.3 to clean up any garbage.  WORKING.  Came up with some misc errors that I need to fix but I'm in my PC and that's what matters.  Normally I would never comment on any posts like these because people leave nothing but garbage tips or try to sell their business.  Thanks again Amir

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  3. Anonymous
    2013-07-05T13:59:55+00:00

    I have the exact same problem,  i had my phone connected to my laptop, i was moving some files inside the phone, when all of a sudden the laptop started lagging it moved the files in 0 bytes per second, so i restarted the laptop and got that blue screen error. just wondering does anyone have any solutions for this, Has anyone tried to install windows 7 then back to w8?

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  4. Anonymous
    2013-06-25T12:17:42+00:00

    in advance option during w8 automatic repair

    refresh pc....or reset

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  5. Anonymous
    2013-06-22T13:37:23+00:00

    “自动修复”无法修复你的电脑

    按“高级选项”以尝试使用其他选项来修复你的电脑，或者按“关机”关闭你的电脑

    日志文件：C:\Windows\System32\Logfiles\Srt\SrtTrail.txt

    I did not do anything.

    But blue screen occurred after a normal restart.

    Sometimes my computer cannot be shut dwn and I have to press the power button for a few seconds to force it be switched off.

    Nothing happened in the past few months.

    But this time my computer cannot boot at all.

    What should I do?

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