Help a computer guy if a solution has helped you.

Friday, July 18, 2008

0x800106ba Windows Defender error Windows Vista

When starting a Windows Vista computer you get a message saying that Windows Defender cannot be started and error code 0x800106ba is shown.

After much web searching and trying many options one thing I found worked for me.
Go to Control Panel then select System and Maintenance and then clicking Administrative Tools then finally select Services.
I scrolled down to Windows Defender service and to my surprise it was deactivated and stopped.
To fix this I double clicked that service to open it, then chose the option to start automatic on start up, then I was able to click on the Start service button.
I then clicked on Apply and Restarted the computer ,windows Defender started up fine.

Change your current antivirus to Panda Antivirus Pro 2010 and forget these problems.
Free trial period too :)



123 comments:

Anonymous said...

yes, thank yiu so much - you have fixed the problem for me. I have been looking on loads of websites and they are all wrong. you got it right!

Fabio the computer guy said...

I'm glad to help you and anyone else.

Anonymous said...

Thank you for the solution. I am a senior lady and you have saved me alot of time and fustration.

Anonymous said...

Thank you so much, absolute legend. There are so many posts on other websites massively complicating the issue. You've certainly fixed it for me.

Anonymous said...

Wow - thanks so much. It was so easy and worked. I tried to search for the answer online in other areas, without success.

Anonymous said...

thnk u so so much because you it worked out 4 me....brilliant...thnks

Anonymous said...

Thank U so much your advice solved my problem. "much relieved - England"

Jim said...

Thank you ever so much for solving this problem tried loads of websites and even microsoft and windows and all failed but yours worked perfectly and was simple thank you

Anonymous said...

Cheers solved a headache!

Anonymous said...

Worked! But I know McAfee caused Windows Defender to stop. I had read that there isn't a need to run Defender if you have McAfee. I just got a subscription for a new Dell laptop (two years). Is that true?

Fabio the computer guy said...

If the Mcafee has a two year subscription then it is a more advanced program than Windows Defender especially if it has internet security .
Many new computers come with a trial version of Mcafee which last for 60 to 90 days and then you have to purchase it ,in that case you can purchse it or use Defender with a free Antivirus program like AVG ,I recomend purchasing Mcafee if you can afford it.

Anonymous said...

i have had the windows defender error since installing mcafee, and have searched the web for a solution, even microsoft couldnt solve it! then came across your post, problem solved easily!!!! thank you so much,

Anonymous said...

Man, thank you so much.  Your instructions were easily understood and simple to do.  Garyzster

Anonymous said...

I too recently installed a new subscription of McAfee. And, I experienced the same error message each time I signed on. I searched Microsoft and lots of other sites for assistance.Yours, however, was the most successful and easy to use. Thank you for assistance. J.Ren

Anonymous said...

This also happened to me, updated Mcafee that was about to expire and Wamo, Defender wouldn't work. Spent an entire day trying to fix, purchased windows fix and nothing $54.70 later and I still couldn't acess program in every way I tried, but I finally found this site. I must say thank you very, very much, this fixed it! Very helpful, keep up the great work! Thank you again

Anonymous said...

Friend you are my new hero. This simple problem was driving me crazy, and so many false and unhelpful posts. I appreciate you posting your clear and easy to follow solution and now that problem is gone!

Fabio the computer guy said...

Thanks for all your kind words ,I should start charging for this lol.
regards

Anonymous said...

thank you for your help.

Mick said...

Fabio, you are an absolute star - like a lot of others I'd done the rounds of assorted forums which offered deeply complex solutions which I couldn't get to sort the problem; yours went straight to the heart of the matter. Genius.

(another whose machine was ok until McAfee installed, by the way)

Nette said...

Thanks, following your instructions got rid of that error for me.

Gala said...

Thanks...it's almost a year after your post and you are still solving problems for people. Much obliged!

Anonymous said...

Yup, a year later and saved me a lot more fruitless searching online. Spent an hour that didn't work before I saw this post. Thanks so much!

Fabio the computer guy said...

It is nearly a year isn't it.
Many people seem to be having this problem it's a compatibility issue with these internet security programs and Windows Defender.
I personally like Panda Antivirus ,it doesn't hog your system and works well.

Pete said...

Problem solved thanks to this simple solution.

Anonymous said...

Thanks Fabio. Your simple solution worked a treat.

The Davies family said...

this has been driving me mad for ages did what you advised and its great now thanks so much

Anonymous said...

worked like a dream

Anonymous said...

thank you very much. i was also confused by complicated answers that didnt solved my problem. thanks to you i dont have that anoying error every time i start my computer, thanks

Anonymous said...

Thank you!!! I too had looked everywhere. Thanl you sol much for sharing!!! People like u make the world go round!!

Anonymous said...

Thank you so much! Like so many others who have commented, I searched and searched for a fix for this & this was the one that simple to do & actually fixed it. Thanks again.

Anonymous said...

Thank you so much! Nobody else seems to have this solution.

Anonymous said...

FANTASTIC. Where do I pay? Thanx.

Biju said...

Thank you very much, I also had the same problem after installing mcafee 9. No w it is resolved thru your advise. Thanks alot

Fabio the computer guy said...

You're welcome .
You pay...erm
At the top left donate button lol :).

Anonymous said...

Wow! This solved the problem with no problem! Too bad MS's website had no resolution...many THANKS!

Anonymous said...

Brilliant!

chloe said...

thanks it worked!

Anonymous said...

Thank you so much it worked perfectly. Great instructions. Thanks again

Anonymous said...

After installing MCAfee, I got the same error. Suggestions at other sites did NOT resolve problem, not even the link at McAfee. Your concise and easy to follow directions immediately resolved the issue with VISTA. Thank you so much!!!!

Anonymous said...

THANK YOU!!!!

Anonymous said...

THANK YOU !!!

Anonymous said...

perfect, you were right on. i think McAfee, is the issue to this error. kudos to you on this find!!

Anonymous said...

Thank you so much, it saves me money to buy an new one

gamefanatik said...

Help, please tellme what I'm doing wrong? I'm using Vista and don't have System & Maintenance in the control panel. I have system, but it doesn't have services listed. I am very computer literate, but this is driving me bonkers.

gamefanatik said...

I think I got it. I went to administrative tools, which I had already done three times and was able to start Defender, but got the error every time I restarted my computer. This time I changed from manual to automatic. Keeping my fingers crossed.

Fabio the computer guy said...

And .......what happend?

Anonymous said...

Its actually, open contol panel, double click on ADMINISTRATIVE TOOLS, then double click on services, double click on windows defender, click start, change manual to automatic, apply, and ok. Great job Fabio...everybody else had it wrong!!! THANK YOU

Fabio the computer guy said...

Thanks for sharing that information.
In your case you are using the classic view in Control Panel so yes you have to go to Administrative tools first.

Anonymous said...

Thank you so much!!!! Been looking for a solution to this problem for the longest. I too just recently installed McAfee to my Dell laptop.

Anonymous said...

Thank you so much. Since installing McAfee on laptop and pc, it stopped working which meant I could not get into my start up menu.
It's 5am and I can now relax!!

peter said...

Same problem as the rest with Vista and installing Mc Afee.

All the other sites did my head in !! your simple guidance solved it for me too .

Big thank you

Peter

Anonymous said...

Great, I have been trying to fix this for days but to no avail, this worked and with no trouble and was easy to complete, thanks

Anonymous said...

Thanks man i tried every website there is and this is the only one that worked

Anonymous said...

Thank you buddy, you solved my problem!

Anonymous said...

Thank you, your suggestion still works... Solved a headache...

Anonymous said...

THANK U SO MUCH!!!!!
IT WORKS FANTASTIC!!!
THANKS MAN!!!!!

Anonymous said...

Thank you so much! Microsoft's website couldn't help me but yours did! My problem is fixed now!

Anonymous said...

Finally! Thanks so much!

Anonymous said...

mahn i swear thank you so much, it worked. :DDDD thanks.

Anonymous said...

Wow it really worked, I spend like 45 minutes trying to fix this and then I finally found this blog, thankyou Very much.

Anonymous said...

Many thanks.I've wasted money buying software to try to fix this problem.If McAfee know about it why don't they fix the problem.They deserve a kick up the backside,You deserve a medal!

Anonymous said...

Thanks! worked!!!!!!

Anonymous said...

thank you, thank you, thank you!

Apurv said...

thanks a lot

Anonymous said...

You rock! Thank you so much!

Anonymous said...

Thank you so much - that was easy. Like others I have looked at other websites and nothing worked. YOU ROCK! :)

Jan said...

I had this same problem with " windows defender " error message 0x00106ba when logging on to Windows Vista . I narrowed the problem to internet explorer 8 . I have explorer 8 on 2 of 3 of my computers all with OS Windows Vista . I upgraded to explorer 8 on my desktop and one of my laptops . The second laptop still has explorer 7 . With explorer 7 I don't get the " Windows defender " error message that I get with the machines that have explorer 8 . I usesd a registry cleaner on all 3 of my machines . I got rid of the defender error messages .

Jan said...

I have McAfee on all my computers but as I said " Windows defender " error messages materialized on the machines upgraded with explorer 8 . No problems with McAfee and explorer 7 . Glad to see that you were able to get rid of the problems .

Dave H. said...

All the Microsoft tips faoled to solve the issue.

You have the solution. It worked the first try.

Thanks

Fabio the computer guy said...

Glad you found Internet explorer 8 was the problem.
Some computers have different ways to solve this problem but all lead to the same root I suppose.

Anonymous said...

Thanks, couldn't believe it was simple as that.

Anonymous said...

Thank you very much. I searched the internet for ages and found lots of suggestions that did not work. this worked straight away and was easy to follow.

Anonymous said...

Thankyou so for this, the solution worked straight away. I've had this error for 4 months now and every day the error message has driven me crazy. Sooooooo glad I googled and found this forum :-D

Anonymous said...

Thank man!! it is really amazing how easy it is to fix things when you know what you are doing!! It's just annoying to see that erros message everytime I start the computer now I am not seeing it and it is working properly. Thanks again.

Anonymous said...

a thanks from me too, your a genuis, thanks godss for guys like you that have solution to the computer warlords battle for your hard earned dollar

Anonymous said...

Thank Goodness! I installed McAfee Virus and all of the sudden Windows Defender stopped working. Thank to this page I was able to fix it... You are the best!!

Anonymous said...

wow,I did so much searching for this error and they were all so complicated.I'm glad i found your solution...it worked great ...thank you so much for taking the time to post this

Anonymous said...

thanks
all the same
you did so much
you made it simple
that was very kind of you
i hope you keep on helping everyone

Anonymous said...

you are good in computers
you have a subdomain
right
just email your email ID and password for this website
i will give you real domain
mycomputerdidwhat.com
you can change it by logging in your own account
this all will be uploaded in that website
email your id and password to
uday0000@yahoo.co.in

Anonymous said...

Thanks SOOOO MUCH! This was irritating me. It did not damage just annoying. Your explanation was so simple and easy to do. Why couldn't MS have an answer for this.

Reggmail said...

This worked fine on Vista 64.
NO MORE DEFINDER 0x800106a POP UP'S.
Thank you very much, you are the man.
Peace & blessings.

Anonymous said...

THIS WORKED!!! I spent so much time looking for a solution...THANKS!!

Anonymous said...

I recently acquired a new pc with vista. This problem has been driving me mad for days with no apparent solution until I found yours.A thousand thanks!! Strange MS hasn't taken it up??!

Anonymous said...

Cheers m8, FINALLY something that worked for me... :)

What About Bob said...

Outstanding. That was easy. Thank you very much.

irene said...

I can't solve this problem, when I go control panel, then system and maintenance, then administrative tools, and here is nothing, I tryed to uninstall windows defender and windows updates, and I can't because there are not in to the programs.

Fabio the computer guy said...

Another way to launch the Services Applet is to type in services.msc in the search box.
Click Start ,Search

Fabio the computer guy said...

It's the square box just above the Start globe (It looks more like a run box)

Anonymous said...

I did search MS site for a month trying to find the solution to this problem, finally got it right from you,THANKS A LOT.

Azelia said...

OMG! i'd been trying to fix this problem for like a month now...lol I had spent a LOT of hours doing this and that and following "instructions" on sites that (ie. dell, microsoft, etc) that said i needed to update my drivers...BS is what i now say =) Thank you so very much!

Anonymous said...

Yet another grateful thank you. I've been struggling with this for 2 months and the side benefit is that I now know about Services.

Anonymous said...

thank you so much, that has been driving me mad. your solution was easy to follow and it worked. brilliant.

Dave said...

Thanks Fabio,
Wonder if this mcafee update also caused my java use on yahoo games to not connect w/ their games server. Your defender fix worked!!!, how about this java connection w/ yahoo?
tia,djk

Fabio the computer guy said...

Want to make me work do ya? lol

Do you get any error ,on the yahoo page?
Do you get any popup messages from Mcafee asking to allow or deny the application?

Anonymous said...

Thank you so much. None of the options provided on other websites worked, but this simple fix worked first time. Many thanks!

Ian said...

Nice job Fabio. Easy solution. You're blue chip.

Ann said...

Thanks so much!! I too have been looking at many websites and trying other solutions . . . you're a genius!

Anonymous said...

Thank you. That error was doing my head in

ad said...

one day my laptop shut down due to ballery was low,next day the massage came that,"application failed to inatilize 0x8001o6ba,at that time the service stoped,i was so angry about in,,but when i gone to net cafe,,.and i gone to web site,.of www.windowsdefender error 0x8001o6ba.com...........at that time i got the solution about it and my laptop get started,,,,........and it has worked,,,,,thanku very much!!!

Anonymous said...

It worked for me as well, he he he


SiRu :)

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Anonymous said...

FANTASTIC! You deserve a metal of honor my friend! Nicely done in helping all of us solve this difficult yet simple (thanks to you) problem!

snowbird01 said...

I went thru the process you described and checked - Windows defender is on and automatic - local service. but it starts and then stops.
I really am just wanting to stop some programs from running automatically when windows starts.
Instructions are: windows defender - tools-software explorer-in category click startup programs -disable and Yes. Can I get at these another way and forget Windows Defender?

Fabio the computer guy said...

You can use the msconfig program by typing it in the run dialogue box in the Start menu.
Go to the start up section and uncheck what you don't want loading ,just remember to leave your antivirus as a startup device.

Anonymous said...

help! i followed the steps and when i got to the service folder, windows defender was already on automatic, but when i click the start service, it says it can't start error 0x80070003: the system cannot find the path specified. is there any way to fix it?

Fabio the computer guy said...

Hi
Try changing it from Automatic to Manual ,click Apply then restart the computer and then change it from Manual to Automatic and see if the service will start.

Anonymous said...

I tried your way, tried several times information very useful, when I went to add/remove programmmes it gave me an option to repair Windows Defender which I did and a very satisfactory result. Thank you very much.

Anonymous said...

As an update to someone's earlier post I also checked by box and it said it was set to automatic and as I said in my earlier post (I run XP) I went to add/remove programmes which when I went to remove said I could repair which I did and it did work, some people may be able to do this as and either or. Again thank you.

Anonymous said...

I tried it but it still says the same thing, do you know how to fix the path or how to detele it so i can re-install it?

Fabio the computer guy said...

Are you running windows XP and what is the exact error you receive.

Anonymous said...

Windows Defender cannot be started and error code 0x800106ba is shown. I am running windows XP.

Fabio the computer guy said...

As a solution that someone with the same problem posted earlier on go to Add/Remove programs in the Control Panel then select Windows Defender and click on remove.
Choose the repair option instead of uninstall.
See if it works for you.

Anonymous said...

Yours was the first post that helped me get to the right place, but I still cannot get Defender to start. It was running before I installed Microsoft Security Essentials, but stopped after that, and when I try to restart it I get the message that some services won't run if they are not in use by other services or programs. Any thoughts on this?

Fabio the computer guy said...

Hi
Have a look here on some microsoft Security Essentials Faqs:
http://social.answers.microsoft.com/Forums/en-US/msestart/thread/5309cb8d-02e1-40e8-974f-0dcedb9ab9fd

Anonymous said...

This did not work out for me. The administrative tools folder is empty

Anonymous said...

hi i trid d abv posted solution but on chngn d option frm manual to auto,n clicking d option start,it state anothr error :

the windows defender service on local computer started and then stopped.some services stop automatically if they are not in use by other serivecces or programs.

LittleGeks said...

I tried the various fixes listed and received the following
the windows defender service on local computer started and then stopped.some services stop automatically if they are not in use by other services or programs.

LittleGeks said...

Oh, I'm running vista 32 bit system with symantec if it makes a difference. I looked for a repair feature and was unable to find one.

Fabio the computer guy said...

Hi try the steps that are described here:
http://www.vistax64.com/tutorials/218830-windows-defender-fix-unable-turn.html

Let us know if it worked.

Fabio the computer guy said...

If that doesnt solve it try disabling Norton and then try to start Windows defender service again.

Sukumar said...

this doesnt work for me! services feature is not there in administrative tools folder. please help!!

Anonymous said...

Thanks ! :)

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