1.    31 Dec 2015 #1
    Join Date : Jul 2015
    Posts : 10
    Windows 10

    Windows Defender turns itself on even with other AV application on


    Just some background information, I was tired of Windows Defender taking up 100% disk usage at startup with Antimalware Service Executable so I installed BitDefender in its place so I could get myself set up when I start up my computer without having to wait half an hour to an hour for anything (Even Task Manager or Ctrl+Alt+Delete Security Screen) to be running.
    Today I just turned on my computer and noticed that it froze after logging in. After about an hour of waiting, I shut it down using the power button and turning it back on, which is usually my last-resort method. I logged into my computer again and opened the Task Manager up to find that Antimalware Service Executable was taking up 100% disk usage again, which then enabled Windows to inform me that both of my AntiVirus programs had been turned off for whatever reason. I clicked on the notification and noticed Windows Defender had turned itself back on when I never disabled Bitdefender to begin with.
    Right now I'm running a Malwarebytes scan and will run a system scan with Bitdefender as well, but I'm pretty sure that's not what caused the problem with my computer because I hadn't downloaded anything since my last scan which was around a week ago.

    My computer is running Windows 10 Home Edition x64 on an Intel i7-4500U Dual-Core clocked at 1.8+2.4GHz with 8GB DDR3 RAM and an Intel HD Graphics (4400) GPU.

    If you need any more information to help find out what the problem is, I will be able to reply quickly! Thanks!
      My ComputerSystem Spec
  2.    01 Jan 2016 #2
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,105
    Win 10 Pro (1703)

    Hi, quite understand as I had to battle with W. Defender when I first upgraded. However, I have Bitdefender (IS 2016) installed, and Bitdefender isn't running. (Nor should it be as you know).

    Puzzling behaviour. I'll just deal with turning off W. Defender so you can get to a usable state.
    With that disabled, you can see whether Bitdefender then runs ok.

    You may know that turning W Defender off using Win 10's GUI means it just comes back to haunt you.
    See options 3, 4 here to disable it (although that shouldn't be necessary).
    Windows Defender Real-time Protection - Turn On or Off in Windows 10 - Windows 10 Forums


      My ComputerSystem Spec
  3.    01 Jan 2016 #3
    Join Date : Jul 2015
    Posts : 10
    Windows 10
    Thread Starter

    Quote Originally Posted by dalchina View Post
    You may know that turning W Defender off using Win 10's GUI means it just comes back to haunt you.
    See options 3, 4 here to disable it (although that shouldn't be necessary).
    Windows Defender Real-time Protection - Turn On or Off in Windows 10 - Windows 10 Forums
    Well I can't do Option 3 because I'm using Windows 10 Home Edition (as stated in my previous post) and W10 Home doesn't come with a Group Policy Editor. I also can't do Option 4 because that registry doesn't exist on my machine:
    Click image for larger version. 

Name:	903f0904b3e734c8070447aeaf5cdf55.png 
Views:	14 
Size:	25.3 KB 
ID:	56493

    Apparently I can't open Windows Defender now because it claims it's off and Bitdefender is on, so I guess my problem was "solved", but I'm not sure what even caused the issue to begin with o.o
      My ComputerSystem Spec
  4.    01 Jan 2016 #4
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,105
    Win 10 Pro (1703)

    Hi, option 4 (reg edit) is provided to cover the case where you don't have access to the GP Editor.

    You may find this of interest: I've not tried it personally, as I have Pro.
    https://www.itechtics.com/enable-gpe...ndows-10-home/
    - claims to enable the Group Policy Editor in Win 10 Home.

    Also this may add a little more to meet your needs, should the problem arise again.
    How to Disable Windows Defender in Windows 10 Permanently WTI NewsBlog
      My ComputerSystem Spec
  5.    01 Jan 2016 #5
    Join Date : Jul 2015
    Posts : 10
    Windows 10
    Thread Starter

    Quote Originally Posted by dalchina View Post
    Hi, option 4 (reg edit) is provided to cover the case where you don't have access to the GP Editor.
    I'm not sure you read my post fully. I even linked an image showing that regedit didn't have the key at all either way.
      My ComputerSystem Spec
  6.    01 Jan 2016 #6
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,105
    Win 10 Pro (1703)

    Not sure what more you expect.. sorry, no magical solution. Note the article I cited refers to sthg like 'if the key doesn't exist you can add...'
      My ComputerSystem Spec
  7.    01 Jan 2016 #7
    Join Date : Nov 2015
    Posts : 4,876
    windows 10 Home threshold2

    Quote Originally Posted by RandomAnimeGame View Post
    I'm not sure you read my post fully. I even linked an image showing that regedit didn't have the key at all either way.
    Pardon me for butting in.

    Re : Option Four
    1. You don't have the key Real-Time Protection, but I believe you can create one. I have done that in other situations.

    2. Why not use the Download button ?
    Disable_Windows_Defender_Real-Time_Protection.reg



    and following the rest of the steps from 4 to 8.
      My ComputerSystem Spec
  8.    01 Jan 2016 #8
    Join Date : Jul 2015
    Posts : 10
    Windows 10
    Thread Starter

    Quote Originally Posted by davidhk View Post
    Pardon me for butting in.

    Re : Option Four
    1. You don't have the key Real-Time Protection, but I believe you can create one. I have done that in other situations.

    2. Why not use the Download button ?
    Disable_Windows_Defender_Real-Time_Protection.reg



    and following the rest of the steps from 4 to 8.
    Okay, I'll try that right away. Thanks!
      My ComputerSystem Spec

 


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