1.    30 Oct 2014 #1

    Windows defender service won't start (build 9860)

    Hi there

    Anybody encountered THIS problem yet (I have no other AV software running).

    Windows defender won't start.

    Attached Thumbnails Attached Thumbnails security.jpg  
      My System SpecsSystem Spec

  2. Joined : Oct 2013
    Nothern Ohio
    Posts : 446
    Windows 7/64 Professional
       30 Oct 2014 #2

    Check Windows 10 time to make sure the time and date are correct. Some infection will change the time so you can't get updates.

    I'm presuming you have check for infections.
    Check and see if your other security programs have the same problem.
    Some infections will try to turn off all security programs.
    Some will also try to stop you from using the internet so you can't get help using that computer.
      My System SpecsSystem Spec

  3. Joined : Nov 2013
    Posts : 1,394
    Win-7Prox64 Win-8.1Prox64 Win-10Prox64
       30 Oct 2014 #3

    The only time I've seen that was after uninstalling Panda antivirus,
    Couldn't turn defender back on after,
    I had to do a refresh install with flash media to get it back on
      My System SpecsSystem Spec

  4. Joined : Sep 2014
    Posts : 234
    10 preview 64bit
       30 Oct 2014 #4

    Hi Jimbo,
    if you ran any AV, any registry remnants that remain will cause the error you are seeing.
    Its a case of hunting them down, usually hiding in users/roaming
    Found this out on my W7 install, its quicker than a reinstal.

      My System SpecsSystem Spec

  5.    03 Nov 2014 #5

    It might also be worth running "sfc/scannow" in command prompt to check for the integrity of the OS files.
      My System SpecsSystem Spec

  6.    03 Nov 2014 #6

    I had re-install to get it to work too.
      My System SpecsSystem Spec

  7. Joined : Nov 2013
    Posts : 4,288
    Win 10 Pro x64
       03 Nov 2014 #7

    I think it's a lot better to make use of your Acronis image backups than playing around with the registry. It's not worth wasting your time trying to fix it at this stage.
      My System SpecsSystem Spec


Similar Threads
Thread Forum
Solved Unable to Re-Start Windows Defender Services
A little background first, I downloaded a file and started to install it when Defender caught the virus, but didn't contain it. So I downloaded Malwarebytes to scan and remove the virus. After I loaded Malwarebytes I noticed I wasn't getting...
AntiVirus, Firewalls and System Security
Can't update windows build from 9860
every time i updated the OS its always comes with error that the connection down. please help
Windows Updates and Activation
Windows 10 Build 9860 Now Available
524631057295896576 See: We're rolling out our first new build to the Windows Insider Program
Windows 10 News
No ISOs for Windows 10 build 9860
Windows 10 News
New build 9860 - Start Menu text STILL not re-sizeable
Hi there Still have an issue with un-readable text on the new start menu -- also it's still not resizeable. Even on a laptop it's TOO small. Cheers jimbo
Windows Insider
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 22:48.
Find Us
Twitter Facebook Google+

Windows 10 Forums