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Corrupt explorer.exe


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#1 1timcarter

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Posted 03 October 2005 - 04:50 PM

On my wife's desktop computer running win2000, when it tries to start up, it gets most of the way through, then gives an error message that explorer.exe is corrupt.

I've tried a set of recovery disks (4) that will boot the computer and following prompts and putting in the administrator's password gets to a DOS type prompt with DOS commands available. It is part of a recovery console. Using that, I went to C:winnt and found the explorer.exe file and renamed it explorer.bad. I then copied the same file from a laptop computer I have running win2000 to a floppy (the date/time stamp and size was identical). I then tried to copy it into the C:winnt directory on the desktop. When I do that I get a message that says "the file could not be copied".

I'm assuming it is because the winnt directory is protected in some way, but I could change the name of the old file in that directory.

Even if I could do it, it may not be the correct, or best way to get this done.

Any suggestions?

I am fairly DOS proficient (read OLD!!).

Thanks for any help. It may be a few days before I get another chance to work on it.

Tim

Edited by 1timcarter, 03 October 2005 - 04:52 PM.

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#2 franktiii

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Posted 03 October 2005 - 06:05 PM

Can you run discovery console? It should be able to repair any corrupted system files automatically.

#3 1timcarter

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Posted 03 October 2005 - 09:03 PM

Can you run discovery console?  It should be able to repair any corrupted system files automatically.

Thanks for the reply.

Can I do that from the DOS prompt that I have up now, or do I have to go through the whole 4 floppy setup? That may have been an option as I went through, but don't remember now.

Thanks,

Tim
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#4 1timcarter

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Posted 04 October 2005 - 05:17 PM

Can you run discovery console?  It should be able to repair any corrupted system files automatically.

Thanks for the reply.

Can I do that from the DOS prompt that I have up now,

The disks I am using will take me to a "recovery console" or allow me to do "emergency repairs", but I don't find a "discovery console".

The recovery console is what I was at that has the DOS like commands. I don't find one that is a "repair" command or any other way to restore the explorer.exe file.

I tried the emergency repair method and went down a wrong path and didn't have the original CD to repair the file. Besides that, I had to go through about a 100 files :thumbsup: answering whether to repair or skip before I got to it. :huh:

I'll try once more to see if it will do it from CAB files on the disk or some other way.

Any other suggestions?

Thanks,

Tim
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#5 1timcarter

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Posted 04 October 2005 - 05:55 PM

Couldn't repair it with the emergency repair disk. Would need the original CD and I don't think I have it. I think it was loaded with CAB files, but not sure as it is a hard drive I got from my son. It replaced a drive that I was also using win2000 on, so I didn't do anything but load the programs and files I wanted on it.

Anybody got any suggestions?

Thanks,

Tim
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#6 HappyShiner

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Posted 04 October 2005 - 06:36 PM

Hi there,

Please do the following:

Start > Run > copy and paste in:
sfc /scannow
Click 'OK'
You will need your XP/2000*Grinler disk. If you don't have it and instead only have a recovery CD, there is a work around. View the following link for a tutorial:

http://www.updatexp.com/scannow-sfc.html

sfc - system file checker, retrieves the correct version of the file from %Systemroot%\System32\Dllcache or the Windows installation source files, and then replaces the incorrect file.

If you want to see what was replaced, right click My Computer > manage, expand event viewer > system.

If you do not have the XP CD...please pay attention to the link I gave you above and follow the instructions...this will also be helpful if the above instructions don't help and we need to come at this from a different way ;)

Big Smiles

HS

#7 1timcarter

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Posted 04 October 2005 - 10:21 PM

Hi there,

Please do the following:

Start > Run > copy and paste in:
sfc /scannow
Click 'OK'
You will need your XP/2000*Grinler disk. If you don't have it and instead only have a recovery CD, there is a work around.


Can't do it since I can't get windows started. Haven't been able to even get safe mode to run. The only thing I have gotten to start is the set of 4 floppy disks with the win2000 startup stuff on it going to the recovery console. That goes to the DOS type prompts mentioned above and SFC is not one of the commands available.

Any other suggestions?

Thanks,

Tim
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#8 HappyShiner

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Posted 05 October 2005 - 10:50 AM

Hi there,

The following links may help:

http://support.microsoft.com/kb/q229716/

http://www.winsupersite.com/showcase/win2k_recoverycon.asp

A chkdsk is certainly something that should be done (see the above link) otherwise FXMBR may be the way to go (provided you are confident there is no malware on your machine).

Let me know if that's of help :thumbsup:

Big Smiles

HS

#9 keystrokes

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Posted 05 October 2005 - 02:28 PM

I agree with the above post do a chkdsk /f command and that should fix your problem. Can you get in the computer in safe mode? if so try the sfc /scannow command in the dos prompt. I forget if it works in safemode or not.

#10 1timcarter

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Posted 06 October 2005 - 09:28 AM

A chkdsk is certainly something that should be done (see the above link) otherwise FXMBR may be the way to go (provided you are confident there is no malware on your machine).

Thanks for the suggestions. I'm not sure at all that there is no malware on it, in fact I think there may be. That contributed to my decision to take it to a pro and have it reformatted and reloaded. Nothing important on this machine so that's the easy way out.

Thanks to all,

Tim
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#11 HappyShiner

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Posted 06 October 2005 - 10:41 AM

Hi there,

Of course you are free to take it into a shop, but in my view that may be premature not to mention expensive, before you have exhausted other avenues. If from the command console you can perform a chkdsc or failing that a repair, that may allow you to boot into safe mode whereby you can perform an sfc/ scannow and scans with your current scanners and remove any possible vermin, then in normal mode perform some online scans and remove any remnents.

Of course, if you opt to take it into the shop, feel free after to ask here for advice on how to make your system secure so that this problem does not occur again :thumbsup:

Big Smiles

HS

#12 1timcarter

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Posted 06 October 2005 - 11:49 AM

Of course, if you opt to take it into the shop, feel free after to ask here for advice on how to make your system secure so that this problem does not occur again :thumbsup:

It's already at the shop, and should be back tomorrow at noon.

I'm always open for advice.

The machine has Adaware, Spybot, Spyware Blaster and AVG on it. What else would you recommend?

All that so she can play cards on it and get her Yahoo mail!! Think maybe I'll put DOS back on it :huh:

Thanks again for the help,

Tim
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#13 acklan

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Posted 06 October 2005 - 11:56 AM

:thumbsup: :huh: Ewido Security Suite
"2007 & 2008 Windows Shell/User Award"

#14 Enthusiast

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Posted 05 November 2005 - 01:27 AM

Freeware AntiSpyware and Security Programs

Software firewalls with freeware versions (If using XP replace your Win XP firewall with one of the following):
Free Zone Alarm SE: http://www.lavasoftusa.com/support/download/

http://www.zonelabs.com/store/content/comp...;NONE?lid=ho_za

Sygate: http://www.sygate.com/

Antivirus programs - freeware (you can only use one resident anti-virus program on your computer. More than one will conflict)

AVG: http://www.grisoft.com/us/us_index.php

Avast Anti-virus freeware
http://www.komando.com/bestshareware.asp


Anti-malware freeware (You can run as many of these as you wish. Generally there is no conflict between these and you should always run several)

*AdAware SE: http://www.lavasoftusa.com/software/adaware/

*Spybot S&D: http://www.safer-networking.org/en/index.html

*the two most important to have!

Microsoft Antispyware Beta: http://www.microsoft.com/athome/security/s...re/default.mspx

SpywareBlaster: http://www.javacoolsoftware.com/spywareblaster.html

Microsoft Malicious Software Removal Tool (Win XP and Win 2000):
http://www.microsoft.com/security/malwareremove/default.mspx

AČ - Free from http://www.majorgeeks.com/download4281.html . Run it, click Search for Updates, then click Scan.


CWShredder
CW Shredder removes some variants of spyware known as the Coolwebsearch Trojan. The Trojan takes advantage of a flaw in a key component of Windows -- Microsoft's version of the Java Virtual Machine -- to install itself via popups often found on porn and illegal software (a.k.a. "warez") sites. Run CWShredder after installing, and have it look for updates. Then click the "Fix" button, and the program will both scan and fix any problems it finds. If your system does not have this kind of spyware, it will give you the good news.
Freeware
http://www.intermute.com/spysubtract/cwshr...r_download.html

Microsoft Baseline Security Analyzer (MBSA)
MBSA is an easy-to-use tool designed for the IT professional that helps small and medium businesses determine their security state in accordance with Microsoft security recommendations and offers specific remediation guidance. Improve your security management process by using MBSA to detect common security misconfigurations and missing security updates on your computer systems.
http://www.microsoft.com/technet/security/...s/mbsahome.mspx


Hijack This and a variety of other tools for malware and pestware
http://216.180.233.162/~merijn/files/HijackThis.exe or
http://www.spywareinfo.com/~merijn/downloads.html

Unless you are an expert in altering, editing or modifying the registry do not attempt to use “Hijack This” without expert assistance which you can get by following the instructions below:
How to submit a Hijack This log
http://www.bleepingcomputer.com/tutorials/how-to-post-a-hijackthis-log/
http://www.bleepingcomputer.com/forums/How...s_Log-t956.html


Web based online Antivirus and anti-malware scans: (these can be run regardless of whatever else you are using. You must use Internet Explorer to run these.)

Kaspersky Anti-Virus Web Scanner
http://www.kaspersky.com/service?chapter=161739400#betatest


Panda Activescan (IE only)
http://www.pandasoftware.com/activescan/co...n_principal.htm

Trend Micro antivirus and malware scan:
http://housecall-beta.trendmicro.com/en/st...orp.asp?id=scan

Etrust Anti-virus web scanner
http://www3.ca.com/securityadvisor/virusinfo/scan.aspx.

online trojan scans here -
http://scan.sygatetech.com/pretrojanscan.html

http://windowsecurity.com/trojanscan

Windows Security Trojanscan
http://www.windowsecurity.com/trojanscan/trojanscan.asp

Start Menu Program Control:

StartUpMonitor: http://www.mlin.net/StartupMonitor.shtml

Edited by Enthusiast, 05 November 2005 - 01:28 AM.





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