I have carried out the process of updating the definitions but it indicates that the definitions are not updated.

Hi, I would advise that you download the latest definitions manually at: https://www.microsoft.com/security/portal/Definitions/ADL.aspx?wa=wsignin1.0 Once you have the latest installed, reboot the system and the updates should pick up again and continue as normal. Martin If you find my information useful, please rate it. :-)

Hi, What kind you error message do you get? Also, please upload Windows Update log to Skydrive and post the link here. Otherwise, you may follow martin's suggestion to manually update definition. Juke Chou TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedbackhere.Juke Chou TechNet Community Support

Hi, What kind you error message do you get? Also, please upload Windows Update log to Skydrive and post the link here. Otherwise, you may follow martin's suggestion to manually update definition. Juke Chou TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedbackhere.Juke Chou TechNet Community Support

Hi, Is this issue fixed? If there is any update, please let us know. Juke Chou TechNet Community Support