Windows 10: Defender is turned on , but doesn't run.

Discus and support Defender is turned on , but doesn't run. in AntiVirus, Firewalls and System Security to solve the problem; Hi, I have windows Defender turned on (by default presumably) but it's greyed out and the slider is not active. Win 10 prompts me with an info box at... Discussion in 'AntiVirus, Firewalls and System Security' started by dch1950, Aug 24, 2015.

  1. DCH1950
    dch1950 Win User

    Defender is turned on , but doesn't run.


    Hi,
    I have windows Defender turned on (by default presumably) but it's greyed out and the slider is not active. Win 10 prompts me with an info box at start up saying Defender is turned off. This is a little odd. Just MS making decisions for me again I presume.
    No but seriously if it's on why won't it update/run itself. Any thoughts - (other than "be patient" - which isn't very useful)
    regards
    Dave

    :)
     
    dch1950, Aug 24, 2015
    #1
  2. JOSé ANTONIO PONTóN POSADA CEO
    José Antonio Pontón Posada CEO Win User

    Windows Defender is turned on and up to date, but says "PC Status: Potentially Unprotected". Why?

    Glad that your computer is up and running - Thank you for sharing the information with us.

    That's always a nice gesture when we get back a post indicating if the suggestions were helpful or not.

    `~`
     
    José Antonio Pontón Posada CEO, Aug 24, 2015
    #2
  3. LENIP
    Lenip Win User
    Windows Defender is turned on and up to date, but says "PC Status: Potentially Unprotected". Why?

    Thank you once again. I have run a scan on the laptop and the message disappeared.

    You have indeed been really helpful and I have learned much from you. THanks for your time.
     
    Lenip, Aug 24, 2015
    #3
  4. GARYDEXTER
    garydexter Win User

    Defender is turned on , but doesn't run.

    Did you upgrade from a previous version of Windows?

    Do you have any other AV or Internet Security Suites installed?
     
    garydexter, Aug 24, 2015
    #4
  5. HIM
    him Win User
    Dave,

    If you have other AV program installed, then Win Defender will be turned off by that program.
     
    him, Aug 24, 2015
    #5
  6. DCH1950
    dch1950 Win User
    Hi,
    I run Malwarebytes Anti-malware, but under 7 pro it never turned off Microsoft Essentials. Are you saying that it now does?
    Dave
     
    dch1950, Aug 24, 2015
    #6
  7. DCH1950
    dch1950 Win User
    Hi - I did upgrade from 7 pro, and I do use Malwarebytes (scheduled - daily), and also Spybot (occasionally)
    But as I said to "him", under 7 pro this didn't affect MS Essentials settings.
    Dave
     
    dch1950, Aug 24, 2015
    #7
  8. BORG 386
    Borg 386 Win User

    Defender is turned on , but doesn't run.

    You might want to run an SFC to see if this fixes the problems. Best to run it at least 3X as it doesn't always fix everything on the 1st or 2nd pass.

    SFC Command - Run in Windows 10 - Windows 10 Forums

    Another 2 options if this does not solve the problem:

     
    Borg 386, Aug 24, 2015
    #8
  9. GARYDEXTER
    garydexter Win User
    Did you have MSE installed when you upgraded?

    There are known issues/conflicts with machines upgrading from Windows 7 with MSE installed.
     
    garydexter, Aug 24, 2015
    #9
  10. DCH1950
    dch1950 Win User
    No I doubt it, as I'd installed a clean copy of win 7 pro to the machine first, then registered for the Win 10 upgrade, had to use a registry hack to enable the upgrade, and then it went ahead. I doubt that MSE was installed in that intervening period - I certainly didn't install it.
    I've run SFC - no problems found. Bit of a puzzle this one.
    Dave
     
    dch1950, Aug 25, 2015
    #10
  11. GARYDEXTER
    garydexter Win User
    If it's an upgraded install following a clean Windows 7 installation, then I would suggest downloading the Windows 10 ISO and re-installing a clean copy providing you've activated that current Windows 10 install
     
    garydexter, Apr 5, 2018
    #11
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Defender is turned on , but doesn't run.

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