I can't update windows defender 0x8007043c error code

My computer has been infected with spyware doctor who derived tool pc (I download from the internet) including Trojan:Win32 / Hiloti.gen! D

Now I open internet explore in safe mode with network.

As I'm just beginner in computers. Please provide the answers.

Thank you

Consult the below Microsoft article and try the steps mentioned and check if it works.

How to troubleshoot Windows Defender definition update

http://support.Microsoft.com/kb/918355/en-us>

If you are in the Canada or the United States, I recommend the Microsoft technical support call

Visit the Microsoft Solution Center and antivirus security for resources and tools to keep your PC safe and healthy.  If you have problems with the installation of the update itself, visit the Microsoft Update Support for resources and tools to keep your PC updated with the latest updates.

For more information about how to contact your local Microsoft subsidiary for support questions with security updates, visit the Microsoft International Support Web site:

http://support.Microsoft.com/common/international.aspx?rdpath=4

Tags: Windows

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    What browser (exact version) you are using. ?

    Harold Horne MVP responded on 24 September 2012

    0x8024400a

    You must be at Service Pack 3 level before you can use Windows updates.

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    See also: http://support.microsoft.com/kb/2497281>

    You may be unable to access the site Web Windows Update in Windows XP, Windows 2000 or Windows Server 2003

    If you haven't already done so, you will need to install the SP2 and SP3 (SP1 note no longer exists).

    How to obtain the latest Windows XP service pack

    http://support.Microsoft.com/kb/322389>

    SP2 - http://www.microsoft.com/en-us/download/details.aspx?id=28>

    (for single PCs too)

    For Windows XP Service Pack 2 installation procedure

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    It is stated in "How to obtain the latest service pack XP" is.

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