Windows Defender refusing to run properly

  1. Posts : 7,257
    Windows 10 Pro 64-bit

    Windows Defender refusing to run properly

    I clean installed Creators Update last Sunday and Defender was running fine until today.

    It refuses to turn on when I press the Turn on Windows Defender Antivirus button in settings.

    Windows Defender refusing to run properly-wdsettings.png

    After I've pressed the button, it takes me to this screen:

    Windows Defender refusing to run properly-wdscreen1.png

    where you can see that the protection section isn't right. Health report says it's not available and there's no update button.

    Today I decided to switch to Insider Release Preview ring and I got the two 11 and 13 cumulative updates. I'm guessing that .14 CU is for fast ring.

    I am not sure how to fix this and if I can't I'll be switching to Bitdefender Free. Because I do work on this machine I want reliable security.
      My Computers

  2. Posts : 2,078
    Windows 10 Pro

    There's a known issue in 1607 for a definition update....but for the latest insider preview builds, there's been no reports post on this particular issue. Every one is reporting clean updates. I wonder if it's made the cross over and manifested itself into what you got.
      My Computer

  3. Posts : 7,257
    Windows 10 Pro 64-bit
    Thread Starter

    It's possible. But this is a clean creator's update install.
      My Computers


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