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cannot find a solution

by yooclid / June 11, 2007 3:30 PM PDT

STOP: c000021a {Fatal System Error}
The windows Logon Process system process terminated unexpectedly with a status of (0x00000000 0x00000000).
The system has been shut down.

I get the above message only when I try to download Windows updates,it started with the release of the last set of updates.

If I do a Windows repair I'm ok as long as I do not attempt to install the updates,if the update requires a restart the problem starts all over.

My OS is Windows xp pro sp2 custom built 5 years old.


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From what I was reading
by PudgyOne / June 11, 2007 5:54 PM PDT
In reply to: cannot find a solution

It looks like it could be anything from hardware failure, changed permissions, Trojan or install problems.


I would first look for hardware failure. Look in device manager.

I would scan for Trojans second. Read second post


If Trojans found, remove them.

If not, then grab out your recovery disks.

boot with recovery disks

choose install

do the agreement

choose recovery

should recover your system. You will need to get the Windows updates.


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cannot find a solution
by yooclid / June 12, 2007 1:42 AM PDT

I did try all of the steps that you have mentioned a few times prior to this post and each time I have to reinstall windows doing a clean install or a repair install.The problem only happens when I try to download a windows update.
I have no other options but to reinstall.
The only hardware that I have connected is my Video card,CD,and keyboard and mouse.Everything looks normal in my BIOS setting etc.

My OS is Windows xp pro sp2.


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Tell more about your clean install.
by R. Proffitt Forum moderator / June 12, 2007 1:47 AM PDT
In reply to: cannot find a solution

Many forget firewalls, motherboard drivers or use some old driver that came with the motherboard.

Your posts are too light on the OS install for me to tell if it's done proper.


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In addition
by tomron / June 12, 2007 1:40 AM PDT
In reply to: cannot find a solution

Check this LINK.With in this link is a link for "STOP: c000021a {Fatal System Error}
The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000034 (0x00000000 0x0000000)
The system has been shutdown.} from MS.


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Windows xp install
by yooclid / June 14, 2007 11:39 PM PDT
In reply to: In addition

I have a few questions about this problem I have with Windows Updates.
Could the problem be the Windows CD itself?
I did another clean install and I can do everything on the computer but download the W/updates.
When you do a clean install the registry is clean etc ?

Just frustrated and curious with this problem.


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by tomron / June 15, 2007 12:18 AM PDT
In reply to: Windows xp install

Try this LINK for possible solution.


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Windows xp install
by yooclid / June 15, 2007 1:03 AM PDT
In reply to: OK

Thanks for the link and I read the whole thing.it never said if he solved the problem,he was working from the recovery console to try and save his data.
My situation is that I perform a clean install and have everything working and then I go to MS updates and the computer will not start when a restart is suggested,and I cannot do anything at all but star it from the Windows CD.

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