Windows 10: Windows Defender not downloading virus definitions.

Discus and support Windows Defender not downloading virus definitions. in AntiVirus, Firewalls and System Security to solve the problem; Windows Defender is giving me the error code - 0x80240016.. Please help. Thank you.... Discussion in 'AntiVirus, Firewalls and System Security' started by S.N. - 363587, Jul 18, 2018.

  1. S.N. - 363587
    S.N. - 363587 Win User

    Windows Defender not downloading virus definitions.


    Windows Defender is giving me the error code - 0x80240016.. Please help. Thank you.

    :)
     
    S.N. - 363587, Jul 18, 2018
    #1
  2. CSH1471199
    CSH1471199 Win User

    How to configure router firewall to allow Windows Defender to update virus definition?

    Windows 10 version 1607 and 1703. My firewall is Fortigate 60E.

    To configure firewall policy to allow Windows Defender to update virus definition, I need the following information:

    1. List of URLs / domain names / IP addresses used by the update server.

    2. Port numbers used by Windows Defender to check and download updates.
     
    CSH1471199, Oct 19, 2018
    #2
  3. RHINA VIB
    Rhina Vib Win User
    Virus and spyware definitions couldn't be updated.

    Hi Ogunmola,

    There are several possible reasons why you are unable to update your virus and spyware definitions in Windows 10. The most common cause is internet connectivity. If you are online, it can be caused by conflicts with the settings in Windows Internet Explorer.

    For us to better assist you with this concern, we need to ask a few questions:

    • Were there any changes made prior to this issue?
    • Are there issues with the internet connection?
    • Are you getting any error messages? Can you send a screenshot?
    • What troubleshooting steps have you tried so far?

    For steps to help resolve this issue with updating the virus and spyware definitions, you can refer to
    Giridhar J's post on this
    link    .

    Looking forward to your reply.

    Thank you.
     
    Rhina Vib, Oct 19, 2018
    #3
  4. ABHINAVSRIVASTAV_790
    AbhinavSrivastav_790 Win User

    Windows Defender not downloading virus definitions.

    virus and spyware definition

    I followed the steps as suggested, and hence the problem got solved that time. But now again the virus definition is not getting updated. Its showing the same problem again. Any long term solution?
     
    AbhinavSrivastav_790, Oct 19, 2018
    #4
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Windows Defender not downloading virus definitions.

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