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The instruction at "0x7c913396" referenced memory at "0x746e4900". The memory could not be "read".

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pa...@techeads.com

unread,
Mar 20, 2009, 8:41:56 PM3/20/09
to
I dont know if this is the right place to post this but here goes....
2 days ago I started receiving this error message booting up and
opening up programs. Its the same error message whatever i do.
Nothing was installed or added recently and im scratching my head as
to what it could be. Heres the specs:
Dell Optiplex 745
3.4 Ghz cpu
512 Megs of RAM
80Gig hard drive
onboard intel video

heres what ive tried:
I'm 99% positive its virus/spareware free. I ran Hijackthis(nothing to
note) Symantec Corp is install as the main antivirus, malwarebytes,
avast, dr web.
cleared out temp files
ran chkdsk
ran a repair of windows (I received the errors going thru setup too)
has the same errors in safe mode to with everything disabled.
Swapped out RAM.
Its currently running the Dell hardware diags....

I saw that one other person has had the errors today to:
http://forums.techguy.org/malware-removal-hijackthis-logs/810863-constant-error-messages.html

Any ideas?

dztrktn

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Mar 21, 2009, 6:54:01 AM3/21/09
to

dztrktn

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Mar 21, 2009, 7:04:01 AM3/21/09
to

Hey, my grandparents are running an old XP pc with this error as well

I have installed and run spybot, and avg spyware, which took care of
numerous malware. but this "referenced memory" problem is still active.
Windows is having a hard time installing new updates.ie it won't.
have also done the rest of the mentioned actions as detailed in the prior
post.
This first occured ~15/16 of march 2009.

Any one know of a free registry fixer. ?

pc specs are early 2005

cpu 2.66ghz
ram 480mb
harddrive 37g

HeyBub

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Mar 22, 2009, 8:22:46 AM3/22/09
to
dztrktn wrote:
> Hey, my grandparents are running an old XP pc with this error as well
>
> I have installed and run spybot, and avg spyware, which took care of
> numerous malware. but this "referenced memory" problem is still
> active. Windows is having a hard time installing new updates.ie it
> won't.
> have also done the rest of the mentioned actions as detailed in the
> prior post.
> This first occured ~15/16 of march 2009.
>
> Any one know of a free registry fixer. ?
>

There are many "registry fixers." All are useless. Some may destroy your
computer.

What makes you think the problem has anything to do with the registry?

Run MSCONFIG. Turn off all non-Microsoft stuff.

Reboot.

Does the problem go away? If so, run MSCONFIG again and start turning stuff
back on until the problem re-appears. When the problem comes back, you've
found the culprit.


pa...@techeads.com

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Mar 22, 2009, 3:28:56 PM3/22/09
to

I tried msconfig in diag mode and the error remained. Its looking
like a clean install might be the only way to fix this. One thing I
havent tried is loading up sp3.
I agree that this isnt a registry issue and all registry cleaners and
fixers are a scam and most will break a lot of programs.

Peter Foldes

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Mar 22, 2009, 8:09:23 PM3/22/09
to
No. This is a malware issue.

Does this error always show the same instruction number and referenced memory number
or does it change each time when it shows ( 0x7c913396 and 0x746e4900 )

--
Peter

Please Reply to Newsgroup for the benefit of others
Requests for assistance by email can not and will not be acknowledged.

<pa...@techeads.com> wrote in message
news:41186dca-7156-4d82...@v35g2000pro.googlegroups.com...

pa...@techeads.com

unread,
Mar 22, 2009, 9:28:07 PM3/22/09
to
> fixers are a scam and most will break a lot of programs.- Hide quoted text -
>
> - Show quoted text -

The same. Everytime. Every program.

dztrktn

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Mar 23, 2009, 7:29:02 AM3/23/09
to

"HeyBub" wrote:

> dztrktn wrote:
> > Hey, my grandparents are running an old XP pc with this error as well
> >

> > I have installed, updated and run spybot, and avg spyware, avg, avg rootkit, windows defender, and a "windows malicous tool program" (from windows downloads. which took care of


> > numerous malware. but this "referenced memory" problem is still
> > active. Windows is having a hard time installing new updates.ie it
> > won't.
> > have also done the rest of the mentioned actions as detailed in the
> > prior post.
> > This first occured ~15/16 of march 2009.
> >

specs
windows xp 2002 home edition
cpu 2.6 ghz
hard drive 37g
ram 512mb
virtual 712mb

> >{ Any one know of a free registry fixer. } -forget the registry...
Not hardware either.
> >
>{ There are many "registry fixers." All are useless. Some may destroy your
> computer.}

What makes you think the problem has anything to do with the registry?

> a: old threads on forums tuted this idea, xp had similar problems, involving sp3 2004-2007apparently.. they don't list any definitive fixes.
what solutions they did mention i have tried, yet this is a unique code

***** New malware problem ? ******

-----------------------------------------------------------------
** Run MSCONFIG. Turn off all non-Microsoft stuff.
>
> Reboot.
>
> Q: **Does the problem go away? If so, run MSCONFIG again and start turning stuff back on until the problem re-appears. When the problem comes back, you've
> found the culprit.
>
> **A:No go, even with msconfig just on ini, and sys, problem occurs
safe mode, same thing. re-install. same thing


--------------------------------------------------------------------------

As soon as welcome screen appears so does this error message;

["
Application Error
lsass.exe - instruction at "0x7c913396" reference memory "0x746e4900" memory
not read. "] - enter to terminate, cancel to debug.

for every process, (services.exe, svchost.exe (numerous), winlogon.exe.
logonui.exe, spoolsv.exe, dwwin.exe, dumprep.exe, alg.exe, `wuaadit'(might
have miss read this one) these are consistent file names (system files)
that appear in "app err msg" evry time. start windows, even in safe mode,
during re-install -

if you click ok or cancel, system crash message appears, 40sec till restart.
msconfig advice stops crashes, but only for a few restarts,

every application you open. gets the "app error msg" as well as windows
error report. if you do nothing it goes away and u can use the program as
normal.

if you click on it the app crashes, the "windows error report" msg,
"flashes" on screen. and if ur quick enough to click them, the sending report
window will disappear, and there is no confirmation window, which is
different to an application actually crashing, where the error msg awaits for
you to "send or not send" the report, and waits for you to close the report,
and thanks you for sending the report.


windows home edition (2002) comes with sp2, which windows is continually
downloading an updating, (23/3/09) when i came across system sp3 was
continually downloading and failing to update. cleaning the system has
allowed sp3 to run, but gets half and "dissappears" no err msg, nothing,
sometimes on shut down, the update registers (turn computer off, {windows
goes through the motions off an update on close}), but on reboot, it's
downloading and unstalling the same updates.

** sp3 will not install, followed steps outlined for this problem **
----------------------------------------------------------------------------
nb. office 2007 demo was recently installed a week or so ago, but is only
in one account(passworded), all non passworded accounts (the rest-even
administrator is not passworded(only available on safe mode), all accounts
have admin rights.
----------------------------------------------------------------------


>

pa...@techeads.com

unread,
Mar 23, 2009, 12:25:35 PM3/23/09
to
> ---------------------------------------------------------------------------­-

> nb.  office 2007 demo  was recently installed a week or so ago, but is only
> in one account(passworded), all non passworded accounts (the rest-even
> administrator is not passworded(only available on safe mode), all accounts
> have admin rights.
> ----------------------------------------------------------------------
>
>
>
> - Hide quoted text -
>
> - Show quoted text -

Update: Hardware Diags passed with flying colors.

Daave

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Mar 23, 2009, 12:24:06 PM3/23/09
to

Paul, if you're following the thread, HeyBub was not addressing you. He
was replying to dztrktn, who apparently hijacked your thread. :-(


pa...@techeads.com

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Mar 23, 2009, 12:46:21 PM3/23/09
to
> was replying to dztrktn, who apparently hijacked your thread. :-(- Hide quoted text -

>
> - Show quoted text -

Such is life on the interwebs.... The more info the better I say. I
find it really odd that a handful of people all got this same weird
error all around the same time. Maybe its a Windows or driver update?

pa...@techeads.com

unread,
Mar 23, 2009, 8:23:29 PM3/23/09
to
> error all around the same time.  Maybe its a Windows or driver update?- Hide quoted text -

>
> - Show quoted text -

Well I would have loved to stick around and help troubleshoot this but
my client requested a reload and I am happy to say it fixed the
issue. Good luck to all.

pa...@techeads.com

unread,
Mar 23, 2009, 8:34:56 PM3/23/09
to
> issue.  Good luck to all.- Hide quoted text -

>
> - Show quoted text -

One last thing.. I did check the update theory and there were no
updates that were applied in the last month. Also I checked for newly
created files from a ubcd (also from where i ran all my anti-virus
scans from).. no new files. Happy troubleshooting!

Broken Laptop

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Mar 23, 2009, 9:17:02 AM3/23/09
to


I have exactly the same problem since end of last week. I thought it
was a hard ware problem but looking at the dates in various threads I
guess I'm not the only one having this problem. My laptop has MS XP
SP2.. any idea on the fix?


Ed L

unread,
Mar 24, 2009, 5:18:24 PM3/24/09
to
On Mar 23, 6:17 am, Broken Laptop <Broken.Laptop.

I'm was getting this problem too but i think I fixed it. I have Dell
Xp, SP3, 2 gb ram. I'm guessing it's to do with a windows update or
some other software update.. I usually scan my computer on a pretty
regular basis with multiple adware and virus scanners, avast, norton,
malwarebytes, onecare, yahoo antispy, search and destroy and maybe 1-2
others.

It's recent past 1-2 weeks and it gives repetitive errors at start up
e.g. 'The instruction at "0x7c912e63" referenced memory at
"0x746e4900". The memory could not be "read" . At startup I get these
messages to terminate lsass.exe, svchost.exe, winlogon.exe,
logonui.exe, ehRecvr.exe, lmmsService.exe, sqlservr.exe, dllhost.exe,
wmiprvse.exe, alg.exe. After windows loads any program that runs
brings up an error offering to send an Error report to microsoft but
then each window closes by itself.. I've run multiple spyware and
virus scans to no avail.

I fixed it by restoring to to Mar 11th restore point by following
steps at http://bertk.mvps.org/ . I don't think restore affects non-
msft files. Not sure if Mar 11th was the exact day that this happened
but Mar 18th restore point didn't fix it.

Broken Laptop

unread,
Mar 25, 2009, 6:16:22 AM3/25/09
to

Ed L;969508 Wrote:
> On Mar 23, 6:17*am, Broken Laptop <Broken.Laptop.
> > > hard drive *37g
> > > ram 512mb
> > > virtual * 712mb

> >
> > > > >{ Any one know of a free registry fixer. } -forget the
> registry...
> > > Not hardware either.
> >
> > > >{ There are many "registry fixers." All are useless. Some may
> destroy
> > > your
> > > > computer.}
> >
> > > What makes you think the problem has anything to do with the
> > > registry?
> > > > a: old threads on forums tuted this idea, xp had similar
> problems,
> > > involving sp3 2004-2007apparently.. *they don't list any

> definitive
> > > fixes.
> > > what solutions they did mention i have tried, yet this is a unique
> > > code
> >
> > > ***** * * * New malware problem ? * ******
> >
> > > -----------------------------------------------------------------
> > > ** *Run MSCONFIG. Turn off all non-Microsoft stuff.
> >
> > > > Reboot.
> >
> > > > Q: ***Does the problem go away? If so, run MSCONFIG again and
> start
> > > turning stuff *back on until the problem re-appears. When the

> problem
> > > comes back, you've
> > > > found the culprit.
> >
> > > > ***A:No go, even with msconfig just on ini, and sys, problem
> occurs
> > > safe mode, same thing. *re-install. same thing

> >
> > >
> --------------------------------------------------------------------------
> >
> > > As soon as welcome screen appears so does this error message;
> >
> > > ["
> > > Application Error
> > > lsass.exe - instruction at "0x7c913396" reference memory
> "0x746e4900"
> > > memory
> > > not read. * *"] * - enter to terminate, cancel to debug.

> >
> > > for every process, (services.exe, svchost.exe (numerous),
> winlogon.exe.
> >
> > > logonui.exe, spoolsv.exe, dwwin.exe, dumprep.exe, alg.exe,
> > > `wuaadit'(might
> > > have miss read this one) * *these are consistent file names

> (system
> > > files)
> > > that appear in "app err msg" evry time. start windows, even in
> safe
> > > mode,
> > > during re-install -
> >
> > > if you click ok or cancel, system crash message appears, 40sec
> till
> > > restart.
> > > msconfig advice stops crashes, but only for a few restarts,
> >
> > > every application you open. *gets the "app error msg" *as well as
> > > windows
> > > error report. *if you do nothing *it goes away and u can use the
> > > program as
> > > normal.
> >
> > > if you click on it the app crashes, *the "windows error report"
> msg, *

> > > "flashes" on screen. and if ur quick enough to click them, the
> sending
> > > report
> > > window will disappear, and there is no confirmation window, which
> is
> > > different to an application actually crashing, where the error msg
> > > awaits for
> > > you to "send or not send" the report, and *waits for you to close

> the
> > > report,
> > > and thanks you for sending the report.
> >
> > > windows home edition (2002) comes with sp2, which windows is
> > > continually
> > > downloading an updating, (23/3/09) *when i came across system sp3
> was
> > > continually downloading and failing to update. *cleaning the system

> has
> >
> > > allowed sp3 to run, but gets half and "dissappears" no err msg,
> > > nothing, *

> > > sometimes on shut down, the update registers (turn computer off,
> > > {windows
> > > goes through the motions off an update on close}), *but on reboot,

> it's
> >
> > > downloading and unstalling the same updates.
> >
> > > ** sp3 will not install, followed steps outlined for this problem
> **
> > >
> ----------------------------------------------------------------------------
> > > nb. *office 2007 demo *was recently installed a week or so ago, but
> steps at 'All About System Restore in WinXP' (http://bertk.mvps.org/) .

> I don't think restore affects non-
> msft files. Not sure if Mar 11th was the exact day that this happened
> but Mar 18th restore point didn't fix it.

Thanks for this. I'll try to go back as much as possible but I think
the oldest restore point I have is from the 14th.... Thanks again


Broken Laptop

unread,
Mar 25, 2009, 7:03:40 AM3/25/09
to

Ed L;969508 Wrote:
> On Mar 23, 6:17*am, Broken Laptop <Broken.Laptop.
> > > hard drive *37g
> > > ram 512mb
> > > virtual * 712mb

> >
> > > > >{ Any one know of a free registry fixer. } -forget the
> registry...
> > > Not hardware either.
> >
> > > >{ There are many "registry fixers." All are useless. Some may
> destroy
> > > your
> > > > computer.}
> >
> > > What makes you think the problem has anything to do with the
> > > registry?
> > > > a: old threads on forums tuted this idea, xp had similar
> problems,
> > > involving sp3 2004-2007apparently.. *they don't list any

> definitive
> > > fixes.
> > > what solutions they did mention i have tried, yet this is a unique
> > > code
> >
> > > ***** * * * New malware problem ? * ******
> >
> > > -----------------------------------------------------------------
> > > ** *Run MSCONFIG. Turn off all non-Microsoft stuff.
> >
> > > > Reboot.
> >
> > > > Q: ***Does the problem go away? If so, run MSCONFIG again and
> start
> > > turning stuff *back on until the problem re-appears. When the

> problem
> > > comes back, you've
> > > > found the culprit.
> >
> > > > ***A:No go, even with msconfig just on ini, and sys, problem
> occurs
> > > safe mode, same thing. *re-install. same thing

> >
> > >
> --------------------------------------------------------------------------
> >
> > > As soon as welcome screen appears so does this error message;
> >
> > > ["
> > > Application Error
> > > lsass.exe - instruction at "0x7c913396" reference memory
> "0x746e4900"
> > > memory
> > > not read. * *"] * - enter to terminate, cancel to debug.

> >
> > > for every process, (services.exe, svchost.exe (numerous),
> winlogon.exe.
> >
> > > logonui.exe, spoolsv.exe, dwwin.exe, dumprep.exe, alg.exe,
> > > `wuaadit'(might
> > > have miss read this one) * *these are consistent file names

> (system
> > > files)
> > > that appear in "app err msg" evry time. start windows, even in
> safe
> > > mode,
> > > during re-install -
> >
> > > if you click ok or cancel, system crash message appears, 40sec
> till
> > > restart.
> > > msconfig advice stops crashes, but only for a few restarts,
> >
> > > every application you open. *gets the "app error msg" *as well as
> > > windows
> > > error report. *if you do nothing *it goes away and u can use the
> > > program as
> > > normal.
> >

> > > if you click on it the app crashes, *the "windows error report"
> msg, *
> > > "flashes" on screen. and if ur quick enough to click them, the
> sending
> > > report
> > > window will disappear, and there is no confirmation window, which
> is
> > > different to an application actually crashing, where the error msg
> > > awaits for
> > > you to "send or not send" the report, and *waits for you to close

> the
> > > report,
> > > and thanks you for sending the report.
> >
> > > windows home edition (2002) comes with sp2, which windows is
> > > continually
> > > downloading an updating, (23/3/09) *when i came across system sp3
> was
> > > continually downloading and failing to update. *cleaning the system

> has
> >
> > > allowed sp3 to run, but gets half and "dissappears" no err msg,
> > > nothing, *

> > > sometimes on shut down, the update registers (turn computer off,
> > > {windows
> > > goes through the motions off an update on close}), *but on reboot,

> it's
> >
> > > downloading and unstalling the same updates.
> >
> > > ** sp3 will not install, followed steps outlined for this problem
> **
> > >
> ----------------------------------------------------------------------------
> > > nb. *office 2007 demo *was recently installed a week or so ago, but
> steps at 'All About System Restore in WinXP' (http://bertk.mvps.org/) .

> I don't think restore affects non-
> msft files. Not sure if Mar 11th was the exact day that this happened
> but Mar 18th restore point didn't fix it.


Hi Ed L,
yes, that did the trick... I don't know why I didn't restore to the
earliest date I had :eek:

Cheers,
Reda


pa...@techeads.com

unread,
Mar 25, 2009, 4:46:53 PM3/25/09
to
On Mar 25, 4:03 am, Broken Laptop <Broken.Laptop.
> > ---------------------------------------------------------------------------­-
> Reda- Hide quoted text -

>
> - Show quoted text -

Greeting again!
So I have a question for all you doing the restore point. Do any of
you having this issue have a restore point prior to March? I was
looking into this conflicker C virus and it supposedly deletes all
restore points prior to infection. This was my case. I had no
restore point befor March which I found kinda weird. Just wondering
if this might be caused by failed implentation of this virus.

pa...@techeads.com

unread,
Mar 25, 2009, 5:05:40 PM3/25/09
to
> if this might be caused by failed implentation of this virus.- Hide quoted text -

>
> - Show quoted text -

For the curious,
If you have this key in your registry, you're probably infected with
conflickerC:
HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\{%08X-%04X-
%04X-%04X-%08X%04X}

rudiau

unread,
Apr 2, 2009, 1:04:56 AM4/2/09
to

"As soon as welcome screen appears so does this error message;

["
Application Error
lsass.exe - instruction at "0x7c913396" reference memory "0x746e4900"
memory

not read. "] - enter to terminate, cancel to debug.

for every process, (services.exe, svchost.exe (numerous),
winlogon.exe.
logonui.exe, spoolsv.exe, dwwin.exe, dumprep.exe, alg.exe,
`wuaadit'(might

have miss read this one) these are consistent file names (system


files)
that appear in "app err msg" evry time. start windows, even in safe
mode,
during re-install -

if you click ok or cancel, system crash message appears, 40sec till
restart.
msconfig advice stops crashes, but only for a few restarts,

every application you open. gets the "app error msg" as well as
windows
error report. if you do nothing it goes away and u can use the program
as
normal."

My symptoms were very similar to the above except i had no crashes just
the error messages.

Here is what worked for me.

1) Found and deleted the following file:-
c:\windows\owfrpqy.lml
Then emptied recycle bin.

2) Found one registry key after searching the registry for owfrpqy.lml
and deleted it.

3) Rebooted and all was well again.

Cheers
Rudi


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