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explorer.exe application error 0xc0000022 after Vista login


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#1 D808Centaur

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Posted 03 June 2012 - 08:43 AM

Vista Ultimate 32bit SP1 -- Dell Dimension E520
Have a recent re-install of OS on a new hard drive, using a (previously used copy of a) Re-installation DVD.
Has been working fine (from 2 weeks ago) up until yesterday.
Now cannot log-in.

Today, on power up, reported the black 'Failed to shutdown properly' screen (or whatever the usual message is).
Have seen this occasionally if pc is turned off while in sleep mode, so thought nothing of it.
'Enter to start windows normally' allowed boot-up to proceed to the Switch User account selection screen.
(Sorry the preceding error messages are vague, wasn't expecting any later issues.)

Trying to login to an account produces the popup saying that explorer.exe has failed to initialise:

"explorer.exe application error
The application failed to initialise properly (0xc0000022). Click OK to terminate the application."

This is followed by further popups indicating that the Task Scheduler has stopped working, and that Windows Problem Reporting has stopped working. If I click OK on the explorer error popup, this also reports that it stopped working. Thereafter I'm left with a black screen.
Ctrl-alt-del returns me to a Vista screen allowing the choice of Lock/switch user/log off/change password/start task manager. Log-off returns me to the Switch User screen; Task Manager does not start.

I have tried the POST check of the hard disk (all OK).
I have booted from the re-installation DVD and run the memory test (appeared to be OK -- I recently upgraded the memory too, but this has also been fine).
I have tried running System Restore from the re-installation DVD -- two different restore points -- but although both appeared to complete OK, neither fixed the problem.

I cannot see how to boot it into Safe Mode, and the re-installation DVD only provides limited facilities.
Fortunately I have my old XP laptop from which I am sending this...
(Unfortunately, it does not include a CD writer.)

PC was working fine last night.
Don't know what else to try, so help would be gratefully appreciated.

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#2 cryptodan

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Posted 03 June 2012 - 08:48 AM

Can you try running in safe mode? You can get there by hitting F8 just after the BIOS Post screen.

#3 D808Centaur

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Posted 03 June 2012 - 09:19 AM

Phew!
Yes it does.
Didn't know about F8 (DELL start screen helpfully doesn't list it.)

What next?
(I have Malwarebytes already installed, although the database is a couple of weeks out-of-date.)

#4 cryptodan

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Posted 03 June 2012 - 09:22 AM

Go back and restart in network mode and download the updates.

#5 narenxp

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Posted 03 June 2012 - 09:40 AM

I have seen norton and webroot to cause this issue.

Uninstall your antivirus from safe mode(you may be need to use removal tools for some antiviruses in safemode)

Click on startmenu and type

cmd

Right click on it and select run as administrator and run this command

sfc /scannow

After command finishes ,try to login into normal mode

If that doesnt work,you should try creating a new user account

repair install would be the last option

good luck

Edited by narenxp, 03 June 2012 - 09:42 AM.


#6 D808Centaur

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Posted 03 June 2012 - 10:20 AM

Go back and restart in network mode and download the updates.


Good plan!
Done this, and a quick scan proved clear, so I'm running a full scan too to be sure.

...then I'll try narenxp's suggestions.
(Thank you, both.)

#7 D808Centaur

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Posted 03 June 2012 - 02:04 PM

Full MalwareBytes scan proved clean.

Unloaded avast! antivirus, as instructed, and ran: sfc /scannow

This found problems:

Windows Resource Protection found corrupt files but was unable to fix some of them.
Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For example
C:\Windows\Logs\CBS\CBS.log

I have found the output file, but it is 180,000 lines long and occupies 40MB (or 1.5MB zipped).
So, what should I look for in the file to find which files are corrupted?
Or is there an alternative approach?

#8 narenxp

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Posted 03 June 2012 - 02:31 PM

Restart the PC

#9 D808Centaur

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Posted 03 June 2012 - 07:54 PM

Restart the PC

Sorry, tried it, but not sure how this helps.
Whether safe mode + networking, or 'normal', the results are the same as above (ie corrupted files reported, or explorer.exe error, respectively).

Does the reboot fix the corrupted files that were not fixed, or have I missed a step somewhere?

#10 narenxp

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Posted 03 June 2012 - 08:48 PM

Did you try booting into new user acct?

#11 D808Centaur

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Posted 04 June 2012 - 04:36 AM

Did you try booting into new user acct?

I hadn't, but I have now.

On selecting the new account from 'Switch User', the same explorer error popup appears.
The only differences are that "Creating desktop..." is shown underneath, followed by a change to a blue background, but then the same repeated popups about the Task Scheduler not starting.

(Incidentally, no errors are seen in "Safe Mode with Networking" -- this reply was sent with the PC in this mode.)

#12 cryptodan

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Posted 04 June 2012 - 09:24 AM

Can you bring up task scheduler and see what is scheduled?

#13 D808Centaur

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Posted 04 June 2012 - 09:49 AM

Can you bring up task scheduler and see what is scheduled?

I've not used Task Scheduler before, but it opens and shows the message:
"Task Scheduler cannot run in Safe Mode"

Is there a way of reading this information when not logged-in to an account?

#14 cryptodan

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Posted 04 June 2012 - 10:05 AM

Download Autoruns for Windows: http://technet.microsoft.com/en-us/sysinte...s/bb963902.aspx

No installation required.

Simply unzip Autoruns.zip file, and double click on autoruns.exe file to run the program.

Go File>Save, and save it as AutoRuns.txt file to know location.

You must select Text from drop-down menu as a file type:

Posted Image

Attach the file to your next reply.

Compliments of Broni

#15 D808Centaur

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Posted 04 June 2012 - 11:02 AM

AutoRuns.txt as requested.

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