Windows 8 Pro cannot boot - Error 0xC000021a

Anonymous

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?

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107 answers

Anonymous

2015-04-27T05:35:20+00:00

I'm having this problem now and I totally agree, I am now rethinking the mac. I cannot deal with constant system updates that break my computer and force me to spend hours fixing. Its not feasible.
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Anonymous

2015-04-27T22:10:32+00:00

I finally gave up and loaded out an open source OS from the linex line. I chose umbunto because it resembles win7. Most look more like apple.
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Anonymous

2015-05-02T02:35:08+00:00

I'm in startup repair and now my system has frozen. I have no idea how to fix computers. PLease help
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Anonymous

2015-05-16T14:45:47+00:00

The link is broken.
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Anonymous

2015-05-28T18:57:07+00:00

Why on earth did they create Win 8?

It has caused me so much grief. Bought a MS Surface Pro 3 - Win 8 has prevented it and me from being friends.

Now this "error 0xc000021a" has stopped what little progress I was making. I ama NOVICE at solving these problems.

I just googled the error and will try the automated suggestion: (Download (0xc000021a) repair utility.

Keeping my fingers crossed when I try it ....
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