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.

0 comments No comments
Answer accepted by question author
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.

Was this answer helpful?

50+ people found this answer helpful.
0 comments No comments

99 additional answers

Sort by: Most helpful
  1. Anonymous
    2011-05-03T20:08:00+00:00

    hi

    if you need to change startup programs read this information about the other methods to do that without using defender

    using msconfig read this tutorial:

    How to use MSCONFIG in Windows Vista

    Here is how to use MSCONFIG in Windows Vista to disable some of the unnecessary programs that automatically load on start-up

    http://netsquirrel.com/msconfig/msconfig_vista.html

    and also try this FREE program, Autoruns:

    This utility, which has the most comprehensive knowledge of auto-starting locations of any startup monitor, shows you what programs are configured to run during system bootup or login, and shows you the entries in the order Windows processes them. These programs include ones in your startup folder, Run, RunOnce, and other Registry keys. You can configure Autoruns to show other locations, including Explorer shell extensions, toolbars, browser helper objects, Winlogon notifications, auto-start services, and much more

    http://technet.microsoft.com/en-us/sysinternals/bb963902

    Was this answer helpful?

    0 comments No comments
  2. Anonymous
    2011-05-03T19:30:57+00:00

    I understand what you say but it's a bit naughty don't you think, when most pc users are not experts and windows defender is the platform to disable/enable/remove startup programs etc.

    Was this answer helpful?

    0 comments No comments
  3. Anonymous
    2011-04-10T11:07:36+00:00

    hi

    in these forums you start your own question

    read this information about defender:

    ·                         if you are using microsoft security essentials avg norton mcafee avira etc they disable the vista version of windows defender by default

    microsoft security essentials has its own version of windows defender

    and other anti-virus programs use their own particular type of spyware and malware application scanner

    it is nothing to worry about and is the default action that is designed for them to do

    Was this answer helpful?

    0 comments No comments
  4. Anonymous
    2011-04-10T11:04:10+00:00

    I have the same problem, I use Microsoft Security Essentials, how can I fix it?

    Was this answer helpful?

    0 comments No comments