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  • Win Defender Definition updates not downloading

    Posted on doneager Comment on the AskWoody Lounge

    Home Forums AskWoody support Windows Windows 10 Windows 10 version 1803 – April 2018 Update Win Defender Definition updates not downloading

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      • #335700 Reply
        AskWoody Plus

        Within the last week or so, Win Defender Definition Updates are refusing to download. Clicking the Download button in Win Update produces no activity. Even turning off Metered Connection doesn’t help.

      • #335936 Reply

        Try manually downloading them.

        In the Windows Defender Security Center, in Virus & Threat Protection, there’s a ‘Check for Updates’ button.

        Windows Defender Manual Update

        PS Did you turn off Windows automatic updates? That would cause WinDef not to update.

        Alienware Aurora R6; Win10 Home x64 1803; Office 365 x32
        i7-7700; GeForce GTX 1060; 16GB DDR4 2400; 1TB SSD, 256GB SSD, 4TB HD

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      • #335974 Reply
        AskWoody Lounger

        Note also that you can try manually downloading Definition updates for Windows Defender Antivirus and other Microsoft antimalware at this website:


        If there is a problem with Microsoft servers, just try again later, or tomorrow.

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      • #336191 Reply

        Thanks for these two responses. I was able to manually download and install the definition update that was “stuck” by going through Defender.  I’ll try to remember to do that if needed in the future. Yes, I have automatic updates turned off as recommended by Woody. I check wushowhide daily to see if there is anything offered that is safe to install. This is usually Defender Definitions and MSRT updates. I don’t hide these and they usually appear, download and install with no problems when I run Windows Update. This process worked fine on today’s Definition update. Have not tried the other website mentioned since the Defender method worked.

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