Windows Defender - Virus and spyware definitions couldn't be updated

Anonymous
2017-09-17T20:43:38+00:00

can't update spyware and virus definitions

Original title/subject: windows defender

Windows for home | Windows 10 | Security and privacy

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2017-10-23T09:03:44+00:00

    Yes just started to happen a day ago

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  2. Anonymous
    2017-10-23T07:50:14+00:00

    The thing is that the virus has expired for the 2nd time again the last time I managed to update it just by clicking on update windows defender on my computer on the right hand bottom corner where it has a triangle symbol then clicked on the symbol with a shield with a cross then managed to scan and it took a while but finished on 7/10/2017 2 weeks ago. Then a week later it was error still saying out of date and cannot be updated. why is that? I try to update it and scan to protect virus but an error always. Is it very important to update every single time or should I just forget about scanning and updating? I have been doing this type of thing so many times, but it is pointless of doing it again. Is it a big deal about protecting the virus thing? Is the virus harmful to my computer? yes or no?

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  3. Anonymous
    2017-10-23T00:36:05+00:00

    Your device is at risk because it’s out of date and missing important security and quality updates. Let’s get you back on track so Windows can run more securely. Select this button to get going:

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  4. Anonymous
    2017-10-23T00:33:42+00:00

    There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80070422)

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  5. Anonymous
    2017-10-22T13:06:30+00:00

    I could not update windows defender - error loading library - DLL

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