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  1.    06 Feb 2016 #1
    Join Date : Jan 2016
    Posts : 14
    Windows 10 Home x64

    Windows Defender disabled and is unable to start


    Hi,

    The windows defender in my pc is disabled and isn't starting up. It just shows that the app is turned off and isnt monitoring your system. The windows security center is also disabled. I tried manually enabling it from the services app and it got enabled but it gets disabled after sometimes itself.

    I have tried booting into safe mode to enable the defender but no luck. i alos dont have any other AV instaleed on my pc that might be clashing with my defender. I also did an integrity check using /sfc code in command prompt and it returned no errors.
      My ComputerSystem Spec
  2.    06 Feb 2016 #2
    Join Date : Nov 2015
    Posts : 4,878
    windows 10 Home threshold2

    This issue happens just recently ?
    If yes, see if system restore will fix it.
    Pick a date when WD was running ( or you did not have that warning ) as your restore point.

    System Restore Windows 10
      My ComputerSystem Spec
  3.    06 Feb 2016 #3
    Join Date : Jan 2016
    Posts : 14
    Windows 10 Home x64
    Thread Starter

    I actually dont remeber the last date when defender was running. So i might have major changes to other programs as well if i do a system restore?

    Should i download a antivirus software to see if there are any viruses that might be affectng my system?
      My ComputerSystem Spec
  4.    06 Feb 2016 #4
    Join Date : Nov 2015
    Posts : 4,878
    windows 10 Home threshold2

    Yes. Install the FREE edition of Malwarebytes and run it.

    https://www.malwarebytes.org/mwb-intercept/

    *** download the Free version.
      My ComputerSystem Spec
  5.    06 Feb 2016 #5
    Join Date : Aug 2015
    Posts : 824
    Win10/64 Pro 1511 (and 2 Win 7/64 Ult & Pro systems)

    Quote Originally Posted by thenextstar View Post

    Should i download a antivirus software to see if there are any viruses that might be affectng my system?
    Quote Originally Posted by davidhk View Post
    Yes. Install the FREE edition of Malwarebytes and run it.

    https://www.malwarebytes.org/mwb-intercept/

    *** download the Free version.
    Just a bit of clarification:


    • MBAM is not an anti-virus. It's an anti-malware scanner that targets certain types of non-viral malware that can be missed by an anti-virus.
    • There is only one installer (setup file) for both Free and Premium versions. It may be downloaded directly from this link.
      • Paid users of the Premium version "activate" the program to unlock the premium features.
      • There is a 14-day Trial enabled by default during installation, unless the user opts-out during the setup wizard. After 14 days, the Trial version reverts to the Free, on-demand, manual version if the program has not been activated with a Premium license.



    Cheers,

    MM
      My ComputerSystem Spec
  6.    06 Feb 2016 #6
    Join Date : Nov 2015
    Posts : 4,878
    windows 10 Home threshold2

    I installed Malwarebytes free edition since the days of Win 7. That's 4 years ago.
    I always installed the FREE version. NOT, repeat, NOT the trial version. Nor do I need to wait till trial version to expire before reverting to free version.

    Where do you get that information ?

    My link is for downloading Free version.
    Click image for larger version. 

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      My ComputerSystem Spec
  7.    06 Feb 2016 #7
    Join Date : Nov 2015
    Posts : 4,878
    windows 10 Home threshold2

    thenextstar,

    Here is another link to download the FREE Malwarebytes. NOT the trial version.

    https://www.malwarebytes.org/mwb-download/


    Adding......................... in fact, only 2 months ago I had to do a Clean Install of Windows 10 and I installed the free edition Malwarebytes back to the system. Never did I need to use the Trial version.
      My ComputerSystem Spec
  8.    06 Feb 2016 #8
    Join Date : Jan 2016
    Posts : 14
    Windows 10 Home x64
    Thread Starter

    Hi guys,

    I installed the free version where it gave me an option to try premium for 15 days and to upgrade if need be so i have started using the premium option for now.

    Anyways back to the problem,

    I scanned using malwarebytes and it detected around 40 threats on a full system scan, i let the software fixx them and then later unintsalled it.

    after a restart these are the things that have happened.

    1. The security center is now enabled. Although i had to manually start the service as it was disabled in the services app, but now it remains enabled on restart also.

    2. Windows defender is still disabled. But there is a samll change now. Previously when i used to click on use windows defender option the dialog box that says that this app has been turned off and isnt monitoring your system would come up for a split second and then disapper but now it remains open and i can close it manually.

    So, the problem remains.
      My ComputerSystem Spec
  9.    06 Feb 2016 #9
    Join Date : Nov 2015
    Posts : 4,878
    windows 10 Home threshold2

    You did not say if you tried the services.msc to Restart Windows Defender again ?
      My ComputerSystem Spec
  10.    06 Feb 2016 #10
    Join Date : Jan 2016
    Posts : 14
    Windows 10 Home x64
    Thread Starter

    Hi,

    Sorry I don't understand?

    I started the Security Center via services.msc by clicking on enabled only but I don't find any service related to Windows Defender there.

    Or I am missing something?
      My ComputerSystem Spec

 
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