Windows Vista- Can't turn on Windows Defender

Anonymous
2010-03-20T07:30:29+00:00

I TRIED TO TURN ON WINDOW DEFENDER. IT GAVE AN ERROR 0X800705B4.

WHAT DO I DO NOW?

[Original title: 0x800705b4  window defender error code]

Windows for home | Previous Windows versions | Security and privacy

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous
2010-03-20T22:34:55+00:00

Hi tropicalvic,

Let’s follow these steps which should fix the issue.

Step 1

If you have any third party antivirus software and firewall disable them temporarily and make sure that the Windows Firewall is turned on. Then check if the issue reappears.

Step 2

  1. Open Run, and  type in services.msc then press Enter.
  2. In services window, locate Windows Defender service in the services list.
  3. Verify that the Status is Started. If the Status column is blank,

right click on the service and select Start.

4 If you get error trying to force start the Windows Defender service, try to change the Startup Type to Automatic, and then restart the computer.

Hope the information helps. Please post back and let us know.

Regards

Debleena S

Microsoft Answers Support Engineer

Visit our Microsoft Answers Feedback Forum and let us know what you think.

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  1. Anonymous
    2012-01-09T09:33:10+00:00

    Hi Debleena

     

    I cant turn Defender on and I also get 0x800705b4

    It first started when I loaded up a trial version of AVG which I have now uninstalled.

    I followed you advice above but it still doesnt work Just says "Windows defender started and then stopped. Some programs automatically stop when not used by another program"

    Any help?

    Cheers

    Hi Debleena,

    I too am having exactly the same issue as these guys.  Please post a solution.  Even if it is to uninstall windows essentials and reinstall.

    thanks,

    S

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  2. Anonymous
    2012-01-09T09:53:38+00:00

    I have tried all of these and still windows defender will not run!  Do I give up and buy a MAC???

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  3. Anonymous
    2012-01-11T16:55:30+00:00

    Hey SimonHoward-Dobson,

    Because this thread was started by another person and because of the threads age, I suggest you follow the link below to start your own thread. 

    Asking your own question helps the community help you specifically with your issue. Remember to include all the details (your version of windows, specs of your system, any error codes etc...) that you can when you start your own thread. 

    New Thread Link

    Thank you!

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  4. Anonymous
    2012-01-22T00:06:46+00:00

    FINALLY and answer! Thank you!!!

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