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windows 8 crash - apisetschem.dll error c0000221

Posted on 2013-07-01
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Last Modified: 2013-07-02
The machine begins to logon and then stops reporting an error in c:\windows\system\ApiSetSchema.dll error code c0000221.

It then later reports interactive logon failure with an ok command button which can't be clicked either by the mouse or by the enter key.

I don't have any recovery media from the owner of the computer.

How can this be corrected?
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Question by:dovidf
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by:McKnife
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Please try to boot into safe mode and try to logon. Google for win8 safe mode if unknown.
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by:dovidf
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Safe mode for Win 8 needs something on the screen. It doesn't work with the f8 sequence of previous operating systems.
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by:dovidf
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I did not get the choices presented in the article from redmondpie. The user doesn't have the system restore disk so I can't restore the system. I am basically stopping at this point.
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by:McKnife
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You should retry.
This one is a little tricky, because it takes trial and error (and patience) to launch the Windows 8 ‘recovery mode’ when start up sequence is on going. What you need to do is, past the BIOS splash screen, hold down the Shift key and repeatedly hit the F8 key. Doing so should get you to the recovery mode, but it might take a few tries before you achieve that.
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by:dovidf
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The windows 8 tools for dealing with problems are currently very crude and limited. They really need some work.
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by:McKnife
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Did you solve it?
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by:dovidf
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No.
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by:McKnife
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Well, have your question reopened. Or did you lose interest because you reinstalled already?
Could safe mode be reached? I had no trouble so far using it with 8.

You could also try to use any version-suitable Win8 DVD and have your installation refreshed. That way, you would get a running windows and keep your data. You would lose your installed programs, however. But those could be reinstalled.

Next time, use windows backup.
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by:dovidf
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It wasn't my computer and I didn't have a re-installation disk.

I could not reach safe mode.1 out of 4 reboots brought up the recovery screen and the See advanced repair options button never appeared so that the safe mode boot option could not be reached.

I booted with a ubcd windows cd to back up the hard drive and it did not see the drive.

I felt that I wasn't making any progress and the user wanted to go back to the vendor to get the system restored. She didn't have much that she needed to restore except for a Microsoft Word installation which she bought from them and would have them reinstall.

I suggested to her to make sure to use backup which would have saved her from the situation that she found herself in.

In any case, the crippled safe mode entry option is a severe degradation of the Windows platform and needs to be corrected.
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by:dovidf
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You might be interested in this How to enable the F8 key to start Safe Mode in Windows 8.

http://www.bleepingcomputer.com/tutorials/enable-the-f8-key-in-windows-8/
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by:McKnife
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Nice one.
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