Windows Defender Failed to Initialize

Nevet · External Since: Mar 18, 2007 Posts: 24

Running Vista Home Premium. When starting the OS, I get an error message
from Windows Defender:

"Application failed to initialize: 0x800106ba. A problem caused Windows
Defender service to stop. To start the service, restart your computer or
search
Help and Support on how to start the service manually."

Attempting to manually start the service brought up another error:

"Windows could not start the Windows Defender service on Local Computer.
Error 0x80092003: An error occurred while reading or writing to a file."

I have uninstalled my third-party (McAfee) security suite so Defender is all
I have on this machine.

I found similar reports on various newsgroups but no solution, workaround or
fix offered.

Any suggestions?

--Nevet

Engel · External Since: Apr 21, 2007 Posts: 102

Hello Nevet,

Error message when you run Windows Defender: "Error Code 0x800106ba

Try this
http://support.microsoft.com/?kbid=931849

I hope this post is helpful.

Let us know how it works ºut.

--

"Nevet" wrote:

> Running Vista Home Premium. When starting the OS, I get an error message
> from Windows Defender:
>
> "Application failed to initialize: 0x800106ba. A problem caused Windows
> Defender service to stop. To start the service, restart your computer or
> search
> Help and Support on how to start the service manually."
>
> Attempting to manually start the service brought up another error:
>
> "Windows could not start the Windows Defender service on Local Computer.
> Error 0x80092003: An error occurred while reading or writing to a file."
>
> I have uninstalled my third-party (McAfee) security suite so Defender is all
> I have on this machine.
>
> I found similar reports on various newsgroups but no solution, workaround or
> fix offered.
>
> Any suggestions?
>
> --Nevet

Nevet · External Since: Mar 18, 2007 Posts: 24

Thanks, Engel! This looked right, but doesn’t seem to apply to Vista.
Running appwiz.cpl, Windows Defender doesn't even show up on the list of
installed Program and Features, nor under Windows features to turn on or off.
It is also not listed in the Windows Installer CleanUp utility
(http://support.microsoft.com/kb/290301/). And when I try to reinstall from
http://www.microsoft.com/athome/security/spyware/software, as the KB article
instructs, I get the message “You do not need to install this software
because Windows Defender is included in Windows Vista. You can access
Windows Defender from the Security section of the Windows Control Panel.”

Windows Security Center shows (under “Malware protection”) that Windows
Defender is turned off. “Turn on now” churns for a while, then says,
“Security Center can’t turn on Windows Defender. Please try again later.”

Any other ideas?

"Engel" wrote:

> Hello Nevet,
>
> Error message when you run Windows Defender: "Error Code 0x800106ba
>
> Try this
> http://support.microsoft.com/?kbid=931849
>
>
> I hope this post is helpful.
>
> Let us know how it works ºut.
>
> --
>
>
>
> "Nevet" wrote:
>
> > Running Vista Home Premium. When starting the OS, I get an error message
> > from Windows Defender:
> >
> > "Application failed to initialize: 0x800106ba. A problem caused Windows
> > Defender service to stop. To start the service, restart your computer or
> > search
> > Help and Support on how to start the service manually."
> >
> > Attempting to manually start the service brought up another error:
> >
> > "Windows could not start the Windows Defender service on Local Computer.
> > Error 0x80092003: An error occurred while reading or writing to a file."
> >
> > I have uninstalled my third-party (McAfee) security suite so Defender is all
> > I have on this machine.
> >
> > I found similar reports on various newsgroups but no solution, workaround or
> > fix offered.
> >
> > Any suggestions?
> >
> > --Nevet

Engel · External Since: Apr 21, 2007 Posts: 102

Hi Nevet,

I'm not sure about this--but it looks promising--
http://support.microsoft.com/default.aspx/kb/935511/en-us

Good luck
--

"Nevet" wrote:

> Thanks, Engel! This looked right, but doesn’t seem to apply to Vista.
> Running appwiz.cpl, Windows Defender doesn't even show up on the list of
> installed Program and Features, nor under Windows features to turn on or off.
> It is also not listed in the Windows Installer CleanUp utility
> (http://support.microsoft.com/kb/290301/). And when I try to reinstall from
> http://www.microsoft.com/athome/security/spyware/software, as the KB article
> instructs, I get the message “You do not need to install this software
> because Windows Defender is included in Windows Vista. You can access
> Windows Defender from the Security section of the Windows Control Panel.”
>
> Windows Security Center shows (under “Malware protection”) that Windows
> Defender is turned off. “Turn on now” churns for a while, then says,
> “Security Center can’t turn on Windows Defender. Please try again later.”
>
> Any other ideas?
>
>
> "Engel" wrote:
>
> > Hello Nevet,
> >
> > Error message when you run Windows Defender: "Error Code 0x800106ba
> >
> > Try this
> > http://support.microsoft.com/?kbid=931849
> >
> >
> > I hope this post is helpful.
> >
> > Let us know how it works ºut.
> >
> > --
> >
> >
> >
> > "Nevet" wrote:
> >
> > > Running Vista Home Premium. When starting the OS, I get an error message
> > > from Windows Defender:
> > >
> > > "Application failed to initialize: 0x800106ba. A problem caused Windows
> > > Defender service to stop. To start the service, restart your computer or
> > > search
> > > Help and Support on how to start the service manually."
> > >
> > > Attempting to manually start the service brought up another error:
> > >
> > > "Windows could not start the Windows Defender service on Local Computer.
> > > Error 0x80092003: An error occurred while reading or writing to a file."
> > >
> > > I have uninstalled my third-party (McAfee) security suite so Defender is all
> > > I have on this machine.
> > >
> > > I found similar reports on various newsgroups but no solution, workaround or
> > > fix offered.
> > >
> > > Any suggestions?
> > >
> > > --Nevet

dean-dean · External Since: Oct 19, 2006 Posts: 1090

Hi Nevet. You might try this. Go to the main Windows Update window and
click on "Installed Updates" (on the left-hand side of the window, at the
bottom), and then remove "Update for Microsoft Windows (KB931099)" (only).
Reboot. Reboot again. Go back to Windows Update, and re-install the same
update, by clicking on the Check for Updates button.

This should essentially re-install Windows Defender on Vista.

"Nevet" <Nevet.RemoveThis@discussions.microsoft.com> wrote in message
news:41903B05-21DC-479F-8C51-2250FE3BDF06@microsoft.com...
> Thanks, Engel! This looked right, but doesn’t seem to apply to Vista.
> Running appwiz.cpl, Windows Defender doesn't even show up on the list of
> installed Program and Features, nor under Windows features to turn on or
> off.
> It is also not listed in the Windows Installer CleanUp utility
> (http://support.microsoft.com/kb/290301/). And when I try to reinstall
> from
> http://www.microsoft.com/athome/security/spyware/software, as the KB
> article
> instructs, I get the message “You do not need to install this software
> because Windows Defender is included in Windows Vista. You can access
> Windows Defender from the Security section of the Windows Control Panel.”
>
> Windows Security Center shows (under “Malware protection”) that Windows
> Defender is turned off. “Turn on now” churns for a while, then says,
> “Security Center can’t turn on Windows Defender. Please try again
> later.”
>
> Any other ideas?
>
>
> "Engel" wrote:
>
>> Hello Nevet,
>>
>> Error message when you run Windows Defender: "Error Code 0x800106ba
>>
>> Try this
>> http://support.microsoft.com/?kbid=931849
>>
>>
>> I hope this post is helpful.
>>
>> Let us know how it works ºut.
>>
>> --
>>
>>
>>
>> "Nevet" wrote:
>>
>> > Running Vista Home Premium. When starting the OS, I get an error
>> > message
>> > from Windows Defender:
>> >
>> > "Application failed to initialize: 0x800106ba. A problem caused Windows
>> > Defender service to stop. To start the service, restart your computer
>> > or
>> > search
>> > Help and Support on how to start the service manually."
>> >
>> > Attempting to manually start the service brought up another error:
>> >
>> > "Windows could not start the Windows Defender service on Local
>> > Computer.
>> > Error 0x80092003: An error occurred while reading or writing to a
>> > file."
>> >
>> > I have uninstalled my third-party (McAfee) security suite so Defender
>> > is all
>> > I have on this machine.
>> >
>> > I found similar reports on various newsgroups but no solution,
>> > workaround or
>> > fix offered.
>> >
>> > Any suggestions?
>> >
>> > --Nevet

Mano · External Since: Jun 02, 2007 Posts: 3

hi nevet, I am having the same problems and was wondering if you figure out
the solution. i have try all the suggestion with no luck.

"dean-dean" wrote:

> Hi Nevet. You might try this. Go to the main Windows Update window and
> click on "Installed Updates" (on the left-hand side of the window, at the
> bottom), and then remove "Update for Microsoft Windows (KB931099)" (only).
> Reboot. Reboot again. Go back to Windows Update, and re-install the same
> update, by clicking on the Check for Updates button.
>
> This should essentially re-install Windows Defender on Vista.
>
>
> "Nevet" <Nevet DeleteThis @discussions.microsoft.com> wrote in message
> news:41903B05-21DC-479F-8C51-2250FE3BDF06@microsoft.com...
> > Thanks, Engel! This looked right, but doesn’t seem to apply to Vista.
> > Running appwiz.cpl, Windows Defender doesn't even show up on the list of
> > installed Program and Features, nor under Windows features to turn on or
> > off.
> > It is also not listed in the Windows Installer CleanUp utility
> > (http://support.microsoft.com/kb/290301/). And when I try to reinstall
> > from
> > http://www.microsoft.com/athome/security/spyware/software, as the KB
> > article
> > instructs, I get the message “You do not need to install this software
> > because Windows Defender is included in Windows Vista. You can access
> > Windows Defender from the Security section of the Windows Control Panel.”
> >
> > Windows Security Center shows (under “Malware protection”) that Windows
> > Defender is turned off. “Turn on now” churns for a while, then says,
> > “Security Center can’t turn on Windows Defender. Please try again
> > later.”
> >
> > Any other ideas?
> >
> >
> > "Engel" wrote:
> >
> >> Hello Nevet,
> >>
> >> Error message when you run Windows Defender: "Error Code 0x800106ba
> >>
> >> Try this
> >> http://support.microsoft.com/?kbid=931849
> >>
> >>
> >> I hope this post is helpful.
> >>
> >> Let us know how it works ºut.
> >>
> >> --
> >>
> >>
> >>
> >> "Nevet" wrote:
> >>
> >> > Running Vista Home Premium. When starting the OS, I get an error
> >> > message
> >> > from Windows Defender:
> >> >
> >> > "Application failed to initialize: 0x800106ba. A problem caused Windows
> >> > Defender service to stop. To start the service, restart your computer
> >> > or
> >> > search
> >> > Help and Support on how to start the service manually."
> >> >
> >> > Attempting to manually start the service brought up another error:
> >> >
> >> > "Windows could not start the Windows Defender service on Local
> >> > Computer.
> >> > Error 0x80092003: An error occurred while reading or writing to a
> >> > file."
> >> >
> >> > I have uninstalled my third-party (McAfee) security suite so Defender
> >> > is all
> >> > I have on this machine.
> >> >
> >> > I found similar reports on various newsgroups but no solution,
> >> > workaround or
> >> > fix offered.
> >> >
> >> > Any suggestions?
> >> >
> >> > --Nevet
>
>

dean-dean · External Since: Oct 19, 2006 Posts: 1090

You could try this.

Go to Control Panel (Classic View) > Windows Update. Click on Change
Settings. Choose "Never check for updates (not recommended)". Un-check the
box under "Recommended updates". Click on Okay. Close Windows Update.

Go to Control Panel (Classic View) > Windows Firewall. Click on Change
Settings. Choose "Off (not recommended)". (Apply, OK). Close Windows
Firewall.

Try starting Windows Defender (Start Menu\Programs). If it starts, click on
the down-arrow to the right of the Help icon, and choose "Check for
updates". Let Defender check and download the update.

If Defender does not open, or if it opens, but doesn't download the update,
go to http://www.microsoft.com/security/portal/

Under "Latest Definition Updates", choose your operating system type, 32-bit
or 64-bit, and try the manual download. Note here the instructions
pertinent to Vista: http://www.microsoft.com/security/portal/ADL.aspx#top

Hoping this works, but either way, re-enable Windows Firewall and put your
Windows Update settings back the way they were.

"Mano" <Mano.TakeThisOut@discussions.microsoft.com> wrote in message
news:9031E47D-07AE-4924-869A-74FBC65BE4EF@microsoft.com...
> hi nevet, I am having the same problems and was wondering if you figure
> out
> the solution. i have try all the suggestion with no luck.
>
> "dean-dean" wrote:
>
>> Hi Nevet. You might try this. Go to the main Windows Update window and
>> click on "Installed Updates" (on the left-hand side of the window, at the
>> bottom), and then remove "Update for Microsoft Windows (KB931099)"
>> (only).
>> Reboot. Reboot again. Go back to Windows Update, and re-install the same
>> update, by clicking on the Check for Updates button.
>>
>> This should essentially re-install Windows Defender on Vista.
>>
>>
>> "Nevet" <Nevet.TakeThisOut@discussions.microsoft.com> wrote in message
>> news:41903B05-21DC-479F-8C51-2250FE3BDF06@microsoft.com...
>> > Thanks, Engel! This looked right, but doesn’t seem to apply to Vista.
>> > Running appwiz.cpl, Windows Defender doesn't even show up on the list
>> > of
>> > installed Program and Features, nor under Windows features to turn on
>> > or
>> > off.
>> > It is also not listed in the Windows Installer CleanUp utility
>> > (http://support.microsoft.com/kb/290301/). And when I try to reinstall
>> > from
>> > http://www.microsoft.com/athome/security/spyware/software, as the KB
>> > article
>> > instructs, I get the message “You do not need to install this software
>> > because Windows Defender is included in Windows Vista. You can access
>> > Windows Defender from the Security section of the Windows Control
>> > Panel.”
>> >
>> > Windows Security Center shows (under “Malware protection”) that Windows
>> > Defender is turned off. “Turn on now” churns for a while, then says,
>> > “Security Center can’t turn on Windows Defender. Please try again
>> > later.”
>> >
>> > Any other ideas?
>> >
>> >
>> > "Engel" wrote:
>> >
>> >> Hello Nevet,
>> >>
>> >> Error message when you run Windows Defender: "Error Code 0x800106ba
>> >>
>> >> Try this
>> >> http://support.microsoft.com/?kbid=931849
>> >>
>> >>
>> >> I hope this post is helpful.
>> >>
>> >> Let us know how it works ºut.
>> >>
>> >> --
>> >>
>> >>
>> >>
>> >> "Nevet" wrote:
>> >>
>> >> > Running Vista Home Premium. When starting the OS, I get an error
>> >> > message
>> >> > from Windows Defender:
>> >> >
>> >> > "Application failed to initialize: 0x800106ba. A problem caused
>> >> > Windows
>> >> > Defender service to stop. To start the service, restart your
>> >> > computer
>> >> > or
>> >> > search
>> >> > Help and Support on how to start the service manually."
>> >> >
>> >> > Attempting to manually start the service brought up another error:
>> >> >
>> >> > "Windows could not start the Windows Defender service on Local
>> >> > Computer.
>> >> > Error 0x80092003: An error occurred while reading or writing to a
>> >> > file."
>> >> >
>> >> > I have uninstalled my third-party (McAfee) security suite so
>> >> > Defender
>> >> > is all
>> >> > I have on this machine.
>> >> >
>> >> > I found similar reports on various newsgroups but no solution,
>> >> > workaround or
>> >> > fix offered.
>> >> >
>> >> > Any suggestions?
>> >> >
>> >> > --Nevet
>>
>>

DellPresto · Joined: Apr 22, 2009 Posts: 1

1) Open the Run command by pressing win + r and type in services.msc

2) In services windows scroll down to look for windows defender

3) Right click on windows defender and change the start up type to
Automatic and click on apply

4) Click on the start service button as well

5) Restart the system & issue should be resovled .

Waseem H
Your PRESTO expert
www.pcpresto.com
Phone us if you need immediate help and support

neednonerd · External Since: Apr 26, 2009 Posts: 5

I tried the regcure, but you have to pay for it and I believe that this
is a Windows Vista Problem that should be fixed by Microsoft. However,
try the following steps and do it yourself without paying for it.

1 Go to control Panel and click on Administrative tools.
2 Click on services and a new windows will appear.
3 Look up for windows defender and right click on it, click on
properties and select automatic, it should be on manual, change it to
automatic and click apply then o.k. and will take you back to the
services windows.
4 Windows Defender should be highlighted and on the left hand side of
the services windows, should be 2 links, click restart.
5 Close all windows and open Windows Defender, it should work without a
problem and your popup window at start up will not be display any
longer.

Hope this helps you.

--
neednonerd

naturalpaths · External Since: Jun 16, 2009 Posts: 1

I have a dell studio 15 that I just got new in February. I have
experienced a lot of problems with it; mouse pad malfunction, the media
controls don't work, and yesterday, I had to do a Image Factory Restore
due to a blue screen loop I was caught it. The tech "support" at dell
was useless and despite paying for all the "warranties" they insisted
that I pay an additional 179.00 before they would even connect me to
someone who could help.

After doing the Image Restore yesterday, I turned on my computer this
morning and got the Windows Defender Error. I followed the steps in the
last post my neednonerd and that seems to have stopped that glitch.

Is anyone else experiencing problems with their Dell studios?

--
naturalpaths
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Gabrielccs · Joined: Jul 30, 2009 Posts: 1

Hi neednonerd your solution solved the problem described above on my computer. Thank you very much for this simple and concise solution.

NimbleBean · External Since: Aug 25, 2009 Posts: 1

I've been having this problem intermittently after automatic updates.
This is the first thing to fix it without a ton of work. Thanks!

--
NimbleBean
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t-4-2 · External Since: Jan 08, 2009 Posts: 112

It would be nice and also customary to include ( append ) the fix that was
successful so that others can benefit.
That is the underlining principle of this and other newsgroup...... mutual
assistance.
It is not a one on one forum.
t-4-2

"NimbleBean" <NimbleBean.3xh1u2.TakeThisOut@DoNotSpam.com> wrote in message
news:NimbleBean.3xh1u2@DoNotSpam.com...
>
> I've been having this problem intermittently after automatic updates.
> This is the first thing to fix it without a ton of work. Thanks!
>
>
> --
> NimbleBean
> ------------------------------------------------------------------------
> NimbleBean's Profile: http://forums.techarena.in/members/128209.htm
> View this thread: http://forums.techarena.in/vista-security/793046.htm
>
> http://forums.techarena.in
>

brentski · External Since: Sep 20, 2009 Posts: 1

As many have found out recently,that there's a fake virus pop-ups going
around claiming you need "Microsoft Security Service" to fix all the
fake pop-up viruses it states your PC has (mine said I had over 25)for a
mewre $89.

I found out quite by accident, that my windows defender wasn't
working(never thought to check it) as I have Cox and their "McAfee
Security Suite" of products that comes with Cox's service.

Again,and quite by accident while checking the services running under
'Task Mgr'. that 'windows defender' was 'stopped'.

I rt. clicked it,turned it on,ran a scan thast found the virus,deleted
it,and I haven't had a problem with any of the virus pop-ups since.(used
to have them constantly all day)

However, everytime I rebooted my PC I found that Windows defender was
turnewd off for some reason.

The fix up above resolved this problem so I don't have to go in and
manually turn on defender every time I reboot.

Thank you very much to 'neednonerd'

--
brentski
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rubengooner · Joined: Sep 19, 2009 Posts: 1

to fix windows defender error 0x800106ba IN IDIOT PROOF(TRUST ME IM A COMPUTER IDIOT)TERMS press START
CONTROL PANEL
ADMINISTRATION TOOLS
you will then get a permission to proceed screen - pressCONTINUE
scroll to WINDOWS DEFENDER
double click it and set to automatic .
IT WORKED FOR THIS IDIOT , SHOULD WORK FOR ANYBODY . Very Happy