error c00000021A on my windows XP Professional after you install spyware and computer back reset

I reinstalled windows XP Professional ON MY DELL gx270s, I formatted the hard disk, installed the drivers from dell four with him, but after I installed my avast spyware on it and the computer comes back from.  I get the code on a blue screen "COOOO21A ERROR". Could you help me with this

I would say that Avast has quarantined (effectively deleted) some system files important XP (he is known for this).

I have a few dozen c000021a errors in my notes, you must provide the exact error message that you see.  Note that these are zeros, not OHS.  I have a curious why would you only provide part of the message see you and wait to help us?

If yous system isn't bootm, the response from the Microsoft support engineer doesn't help.  Even if your system does not start, it would be still useless.  It is however the first article of KB Microsoft coming in a Bing search engine, but that's not good.  Don't waste your time on these responses.

Here is an example, and we need something like that on your part:

STOP: c000021a {fatal system error}
The Windows logon process ended unexpectedly with the status of 0xc0000034 (0 x 0000000 0000000 x 0).
The system has been shut down.

Then, you will need to answer these questions to the best you can:

What is your Version of XP and the Service Pack?

Your system have IDE or SATA disks?

The afflicted system has a working CD/DVD (internal or external) drive?

You have a true bootable XP installation CD (it is not the same as any recovery CD provided with your system)?

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