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Windows Defender shuts down

Anonymous
2020-04-16T16:31:24+00:00

For some reason, yesterday and again today, Defender has turned OFF for no reason and I can't get it restarted without a restart. Then it will seem to start normally only to shut down shortly thereafter. The only change to my PC was been a Windows auto update KB4549951

Windows for home | Windows 10 | Security and privacy

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  1. Sumit D - IA 154.7K Reputation points Independent Advisor
    2020-04-16T16:34:02+00:00

    Hi Wey,

    I am Sumit, an Independent Advisor and a 3 year Windows Insider MVP here to help.

    We are aware or the reports of threat protection service not working with the latest release. The problem has been escalated to Microsoft and a fix is likely on its way. I would update you once it is resolved.

    https://answers.microsoft.com/en-us/protect/for...

    Appreciate your patience.

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  3. Anonymous
    2020-04-16T19:30:31+00:00

    Thanks so much for this info, Sumit. I've got my system set for auto-update, but I'll also keep an eye on it, too.

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  4. bhringer-9380 4,350 Reputation points Volunteer Moderator
    2020-04-16T20:25:08+00:00

    Microsoft has just released new Antivirus/Antispyware definition whose version is 1.313.1687.0 that fixes the issue.

    Windows 10 users can check what version of Windows Defender is being used by checking this guide.

    Users can manually update the Windows Defender definitions by going to Windows Security > Virus & threat protection and then clicking on the 'Check for updates' link.

    Source: https://www.bleepingcomputer.com/news/microsoft/windows-defender-broken-by-recent-updates-how-to-fix/

    If not available in Windows Security go to Settings > Update & Security > Check for updates.

    ~bhringer

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  5. Anonymous
    2020-04-16T22:40:56+00:00

    Thanks for your reply, bhringer, but as I follow your instructions I don't have the option to "check for updates."

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