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
    2013-06-08T12:40:48+00:00

    DustyM07 gave the solution on page 4 that worked for me

    "Control Panel - System & security - System - Allow remote access then restart"

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  2. Anonymous
    2013-06-07T10:48:03+00:00

    I have this same problem on my ASUS trying to run Windows Defender for Windows 8. Followed the step-by-step instructions. In the Services panel, it shows Windows Defender is running...it will not allow me to make any changes or restart.

    The option to change it to "Automatic" is not given.

    McAfee was installed as the trial AV protection and I have uninstalled it and removed it from the programs allowed through the firewall. The Windows firewall is at the appropriate setting.

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  3. Anonymous
    2013-06-02T22:09:00+00:00

    Your a star, thank you

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  4. Anonymous
    2013-05-23T07:37:44+00:00

    Windows defender didn't start following your instruction.

     

    I AM USING WINDOWS 8 PRO 64 BIT AND HAS THE ABOVE PROBLEM

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