W7 Explorer Crashes System

New Dell 3647 Desktop. Clean install - out of the box.
Teamviewer installed
All windows updates applied.
installed Sophos AV - firewall
Office 2013 std installed and patched.

Added to 2003 domain. (which works fine with a mix of xp, and w7 clients. (Particularly in the context of shared folders.)

Used windows easy transfer to migrate user data. -Apparently correctly.

THE PROBLEM:-

Mapped network drive to server. (Happens to be PDC / DC)
View drive with explorer:- Opens and displays first level (all folders). Open any folder with files. Attempt to open any file- System crashes completely, and restarts. Completely repeatable.

HAVE:
Verified independent of domain / local profile .
Tried setting up drive mapping to different locations.
Disabling DFS on server
disabled IPV6
disabled AV and firewall
tried using different network cards / wireless connection. (attempting to isolate possible driver issues)

All no change. This is the state the machine is currently in.

Minor digression for background only===============
User worked with the dell support centre, who were useless. Only attempting to download every update possible for the machine, en mass. Managed to get it so that a file could be opened, but it would crash on save. Since they  had no idea which if any of the driver / program updates (about 20) that had done anything. Restored it back, to earlier. And said re-install was the answer....That took a lot of analysis.!)
end of digression========

Prior to reinstalling. all of which has to be done remotely, with international calls to users who barely know where the power switch is....I thought I would turn to the Team.

Look forward to hearing from you
jamesmonilawsAsked:
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PerarduaadastraCommented:
Is the crash a BSOD? If so, is there a stop error recorded in the event viewer? Also, turn off automatic restart in the event of a system failure, so that viewing the full details is a lot easier than ferreting about in the event viewer.
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jamesmonilawsAuthor Commented:
Yes, 0x00000001E.
Nothing in event log, , except on restart noting that the system had crashed.
Auto restart is off now.
Only evidence is a minidmp file
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PerarduaadastraCommented:
Can you post the mini-dump?
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jamesmonilawsAuthor Commented:
mini dump file. attached
091514-11278-01.dmp
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PerarduaadastraCommented:
The bug check string is KMODE_EXCEPTION_NOT_HANDLED.

The error originates in ntfs.sys and suggests a memory access violation.

I'd be inclined to uninstall Sophos and see if that makes a difference. If it doesn't, run a RAM test for several passes (this will take some time, measured in hours) and see if that throws up any errors. The only acceptable number of memory errors during such testing is zero. If that doesn't reveal dodgy RAM then scan the hard disk for errors; such errors can be very small but sufficient to corrupt files if any part of those files are on a compromised disk sector.

It's also possible that your Dell has a less-than-perfect system image out of the box; it does happen. Unfortunately, the only way to test this is to do a manual install of the OS from scratch...
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jamesmonilawsAuthor Commented:
Tried  all of the suggested including exhaustive HW checks. No change. CHKDSK etc etc..

In the end used restore partition, and the same setup process as before. All works fine. Just lots of time wasted.

Looks like bad image was the problem.

thnkas fo rchecking.

BTW. What is an easy way of examining the minidump information?
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PerarduaadastraCommented:
I use Nirsoft's excellent BlueScreenView for investigating the contents of minidumps.
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jamesmonilawsAuthor Commented:
Thanks for your help.
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PerarduaadastraCommented:
My pleasure.
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