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 :)



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123 comments:

  1. AnonymousMarch 2, 2009 at 10:41 PM

    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!

    ReplyDelete
  2. Fabio the computer guyMarch 3, 2009 at 10:49 AM

    I'm glad to help you and anyone else.

    ReplyDelete
  3. AnonymousMarch 5, 2009 at 5:50 AM

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

    ReplyDelete
  4. AnonymousMarch 8, 2009 at 6:29 PM

    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.

    ReplyDelete
  5. AnonymousMarch 12, 2009 at 5:58 AM

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

    ReplyDelete
  6. AnonymousMarch 12, 2009 at 11:05 AM

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

    ReplyDelete
  7. AnonymousMarch 16, 2009 at 9:16 PM

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

    ReplyDelete
  8. JimMarch 18, 2009 at 6:06 PM

    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

    ReplyDelete
  9. AnonymousMarch 30, 2009 at 10:51 AM

    Cheers solved a headache!

    ReplyDelete
  10. AnonymousApril 4, 2009 at 4:04 AM

    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?

    ReplyDelete
  11. Fabio the computer guyApril 4, 2009 at 9:00 PM

    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.

    ReplyDelete
  12. AnonymousApril 6, 2009 at 1:20 PM

    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,

    ReplyDelete
  13. AnonymousApril 7, 2009 at 7:52 PM

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

    ReplyDelete
  14. AnonymousApril 9, 2009 at 5:17 PM

    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

    ReplyDelete
  15. AnonymousApril 12, 2009 at 1:08 AM

    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

    ReplyDelete
  16. AnonymousApril 17, 2009 at 3:50 AM

    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!

    ReplyDelete
  17. Fabio the computer guyApril 17, 2009 at 3:17 PM

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

    ReplyDelete
  18. AnonymousMay 5, 2009 at 5:59 PM

    thank you for your help.

    ReplyDelete
  19. MickMay 5, 2009 at 11:37 PM

    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)

    ReplyDelete
  20. NetteMay 8, 2009 at 3:11 AM

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

    ReplyDelete
  21. GalaMay 10, 2009 at 12:27 AM

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

    ReplyDelete
  22. AnonymousMay 10, 2009 at 7:32 PM

    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!

    ReplyDelete
  23. Fabio the computer guyMay 11, 2009 at 11:05 AM

    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.

    ReplyDelete
  24. PeteMay 11, 2009 at 8:25 PM

    Problem solved thanks to this simple solution.

    ReplyDelete
  25. AnonymousMay 11, 2009 at 8:26 PM

    Thanks Fabio. Your simple solution worked a treat.

    ReplyDelete
  26. The Davies familyMay 14, 2009 at 7:05 PM

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

    ReplyDelete
  27. AnonymousMay 14, 2009 at 10:14 PM

    worked like a dream

    ReplyDelete
  28. AnonymousMay 17, 2009 at 7:21 PM

    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

    ReplyDelete
  29. AnonymousMay 23, 2009 at 6:59 PM

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

    ReplyDelete
  30. AnonymousMay 24, 2009 at 10:05 PM

    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.

    ReplyDelete
  31. AnonymousMay 25, 2009 at 5:48 AM

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

    ReplyDelete
  32. AnonymousMay 26, 2009 at 4:23 PM

    FANTASTIC. Where do I pay? Thanx.

    ReplyDelete
  33. AnonymousMay 27, 2009 at 7:33 AM

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

    ReplyDelete
  34. Fabio the computer guyMay 27, 2009 at 11:35 AM

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

    ReplyDelete
  35. AnonymousJune 1, 2009 at 2:15 AM

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

    ReplyDelete
  36. AnonymousJune 1, 2009 at 9:13 PM

    Brilliant!

    ReplyDelete
  37. chloeJune 4, 2009 at 2:59 PM

    thanks it worked!

    ReplyDelete
  38. AnonymousJune 9, 2009 at 8:18 PM

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

    ReplyDelete
  39. AnonymousJune 13, 2009 at 9:30 PM

    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!!!!

    ReplyDelete
  40. AnonymousJune 18, 2009 at 12:56 PM

    THANK YOU!!!!

    ReplyDelete
  41. AnonymousJune 21, 2009 at 9:26 PM

    THANK YOU !!!

    ReplyDelete
  42. AnonymousJune 21, 2009 at 10:07 PM

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

    ReplyDelete
  43. AnonymousJune 21, 2009 at 11:22 PM

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

    ReplyDelete
  44. gamefanatikJune 23, 2009 at 8:56 AM

    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.

    ReplyDelete
  45. gamefanatikJune 23, 2009 at 9:03 AM

    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.

    ReplyDelete
  46. Fabio the computer guyJune 23, 2009 at 9:43 AM

    And .......what happend?

    ReplyDelete
  47. AnonymousJune 27, 2009 at 11:02 PM

    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

    ReplyDelete
  48. Fabio the computer guyJune 29, 2009 at 10:48 AM

    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.

    ReplyDelete
  49. AnonymousJuly 1, 2009 at 5:16 AM

    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.

    ReplyDelete
  50. AnonymousJuly 2, 2009 at 5:03 AM

    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!!

    ReplyDelete
  51. peterJuly 3, 2009 at 4:24 PM

    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

    ReplyDelete
  52. AnonymousJuly 7, 2009 at 12:01 PM

    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

    ReplyDelete
  53. AnonymousJuly 7, 2009 at 1:52 PM

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

    ReplyDelete
  54. AnonymousJuly 9, 2009 at 6:17 PM

    Thank you buddy, you solved my problem!

    ReplyDelete
  55. AnonymousJuly 10, 2009 at 11:34 AM

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

    ReplyDelete
  56. AnonymousJuly 12, 2009 at 2:58 PM

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

    ReplyDelete
  57. AnonymousJuly 13, 2009 at 12:52 AM

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

    ReplyDelete
  58. AnonymousJuly 13, 2009 at 2:43 PM

    Finally! Thanks so much!

    ReplyDelete
  59. AnonymousJuly 15, 2009 at 4:59 AM

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

    ReplyDelete
  60. AnonymousJuly 15, 2009 at 4:26 PM

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

    ReplyDelete
  61. AnonymousJuly 16, 2009 at 4:52 PM

    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!

    ReplyDelete
  62. AnonymousJuly 19, 2009 at 9:44 PM

    Thanks! worked!!!!!!

    ReplyDelete
  63. AnonymousJuly 22, 2009 at 4:11 AM

    thank you, thank you, thank you!

    ReplyDelete
  64. ApurvJuly 23, 2009 at 12:16 AM

    thanks a lot

    ReplyDelete
  65. AnonymousJuly 24, 2009 at 5:31 AM

    You rock! Thank you so much!

    ReplyDelete
  66. AnonymousJuly 24, 2009 at 8:23 PM

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

    ReplyDelete
  67. janJuly 25, 2009 at 7:44 PM

    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 .

    ReplyDelete
  68. janJuly 25, 2009 at 7:58 PM

    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 .

    ReplyDelete
  69. Dave H.July 27, 2009 at 2:38 AM

    All the Microsoft tips faoled to solve the issue.

    You have the solution. It worked the first try.

    Thanks

    ReplyDelete
  70. Fabio the computer guyJuly 27, 2009 at 12:07 PM

    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.

    ReplyDelete
  71. AnonymousJuly 28, 2009 at 11:46 AM

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

    ReplyDelete
  72. AnonymousJuly 28, 2009 at 7:51 PM

    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.

    ReplyDelete
  73. AnonymousJuly 30, 2009 at 12:21 AM

    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

    ReplyDelete
  74. AnonymousJuly 30, 2009 at 6:22 PM

    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.

    ReplyDelete
  75. AnonymousAugust 2, 2009 at 3:01 PM

    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

    ReplyDelete
  76. AnonymousAugust 4, 2009 at 4:26 AM

    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!!

    ReplyDelete
  77. AnonymousAugust 5, 2009 at 6:55 AM

    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

    ReplyDelete
  78. AnonymousAugust 9, 2009 at 4:23 PM

    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

    ReplyDelete
  79. AnonymousAugust 9, 2009 at 4:29 PM

    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

    ReplyDelete
  80. AnonymousAugust 9, 2009 at 7:29 PM

    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.

    ReplyDelete
  81. ReggmailAugust 10, 2009 at 1:06 PM

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

    ReplyDelete
  82. AnonymousAugust 12, 2009 at 3:08 AM

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

    ReplyDelete
  83. AnonymousAugust 12, 2009 at 11:09 AM

    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??!

    ReplyDelete
  84. AnonymousAugust 13, 2009 at 6:02 PM

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

    ReplyDelete
  85. What About BobAugust 15, 2009 at 7:52 PM

    Outstanding. That was easy. Thank you very much.

    ReplyDelete
  86. Irene ManriqueAugust 17, 2009 at 6:10 PM

    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.

    ReplyDelete
  87. Fabio the computer guyAugust 18, 2009 at 10:18 AM

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

    ReplyDelete
  88. Fabio the computer guyAugust 18, 2009 at 10:26 AM

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

    ReplyDelete
  89. AnonymousAugust 21, 2009 at 5:54 PM

    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.

    ReplyDelete
  90. AzeliaAugust 22, 2009 at 6:02 AM

    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!

    ReplyDelete
  91. AnonymousAugust 23, 2009 at 10:40 AM

    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.

    ReplyDelete
  92. AnonymousAugust 23, 2009 at 8:12 PM

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

    ReplyDelete
  93. UnknownAugust 25, 2009 at 4:06 AM

    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

    ReplyDelete
  94. Fabio the computer guyAugust 25, 2009 at 2:52 PM

    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?

    ReplyDelete
  95. AnonymousAugust 26, 2009 at 1:06 PM

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

    ReplyDelete
  96. IanAugust 29, 2009 at 4:11 AM

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

    ReplyDelete
  97. AnnSeptember 24, 2009 at 5:50 PM

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

    ReplyDelete
  98. AnonymousOctober 12, 2009 at 7:00 PM

    Thank you. That error was doing my head in

    ReplyDelete
  99. UnknownOctober 21, 2009 at 9:48 AM

    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!!!

    ReplyDelete
  100. AnonymousNovember 4, 2009 at 6:53 AM

    It worked for me as well, he he he


    SiRu :)

    ReplyDelete
  101. AnonymousDecember 24, 2009 at 1:31 PM

    Nice post as for me. It would be great to read a bit more concerning this theme. Thanx for sharing that data.
    Sexy Lady
    Girls for companionship in London

    ReplyDelete
  102. AnonymousMarch 25, 2010 at 5:01 PM

    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!

    ReplyDelete
  103. snowbird01March 26, 2010 at 9:19 PM

    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?

    ReplyDelete
  104. Fabio the computer guyMarch 29, 2010 at 6:25 PM

    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.

    ReplyDelete
  105. AnonymousApril 7, 2010 at 2:58 AM

    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?

    ReplyDelete
  106. Fabio the computer guyApril 8, 2010 at 2:02 PM

    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.

    ReplyDelete
  107. AnonymousApril 9, 2010 at 8:48 AM

    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.

    ReplyDelete
  108. AnonymousApril 9, 2010 at 9:11 AM

    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.

    ReplyDelete
  109. AnonymousApril 10, 2010 at 12:11 AM

    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?

    ReplyDelete
  110. Fabio the computer guyApril 12, 2010 at 1:52 PM

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

    ReplyDelete
  111. AnonymousApril 12, 2010 at 4:22 PM

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

    ReplyDelete
  112. Fabio the computer guyApril 14, 2010 at 1:01 PM

    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.

    ReplyDelete
  113. AnonymousJune 2, 2010 at 6:28 PM

    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?

    ReplyDelete
  114. Fabio the computer guyJune 2, 2010 at 6:46 PM

    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

    ReplyDelete
  115. AnonymousSeptember 28, 2010 at 2:57 PM

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

    ReplyDelete
  116. AnonymousSeptember 30, 2010 at 12:18 AM

    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.

    ReplyDelete
  117. LittleGeksOctober 14, 2010 at 3:22 AM

    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.

    ReplyDelete
  118. LittleGeksOctober 14, 2010 at 3:25 AM

    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.

    ReplyDelete
  119. Fabio the computer guyOctober 14, 2010 at 9:33 AM

    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.

    ReplyDelete
  120. Fabio the computer guyOctober 14, 2010 at 9:35 AM

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

    ReplyDelete
  121. SukurockingOctober 21, 2010 at 6:08 PM

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

    ReplyDelete
  122. AnonymousJune 16, 2013 at 9:25 PM

    Thanks ! :)

    ReplyDelete
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