Windows 8 and 8.1 Forums

Unable to start Windows Defender service in Windows 8.1

  1. #1

    Posts : 1
    Windows 8.1 64-bit

    Unable to start Windows Defender service in Windows 8.1


    I'm having issues enabling the Windows Defender service in Windows 8.1 64-bit after I uninstalled Avast Free Antivirus. I have also used a tool on their website to perform a "complete" cleanup of their software without success.
    If I run services.msc all the options are greyed out and service status: Stopped

    No other a/v programs installed.

    Any hints how to restart the Windows Defender service ?


      My System SpecsSystem Spec

  2. #2

    Posts : 374
    Win 8.1 64bit

    This has been a recurring issue. I can't remember the solution, but scroll through the link below for others with the same issue.
    Last edited by torre; 29 Jan 2015 at 21:16.
      My System SpecsSystem Spec

Unable to start Windows Defender service in Windows 8.1

Similar Threads
Thread Forum
Windows could not start the Audio Service, 0x800706cc
My pc is running on Windows 8.1, and it was running prefectly fine till yesterday. Today when I started it, the audio icon in the taskbar had this red-cross symbol next to it, and the audio wasn't running. I clicked on the icon, and instead of the volume control menu, a troubleshooter popped up...
Sound & Audio
Windows Audio Service will not start, error 1067
Hello! This is my first time asking for help; thank you for your time. I have an Asus N550JV laptop with windows 8. It has been working great the last year, but after a recent windows update, my audio completely stopped working. After running the troubleshooter, it stated the following: ...
Sound & Audio
Windows audio service wont start help?
Hello i have a windows 8 laptop and today the sound just stopped working. The windows audio service will not enable and everytime i try to enable it fails due to a duplicate in"Windows Audio Endpoint Builder. Now tricky part is i cant open control pannel as it doesnt load, i tried reinstalling...
Sound & Audio
Windows defender service won't start, many options tried
I am posting this in general support on the off chance that it may not be a virus. So lately I have been having an issue with Windows Defender. The program will start, but the service won't. If i use the "start now" button, my computer becomes unbearably slow and unresponsive and eventually...
General Support
Windows Firewall Service Doesn't Start Automatically
Howdy folks, When I boot my computer I have to start the Windows Firewall service manually by opening services, otherwise I won't be able to perform any local networking actions. The service is set to Automatic, yet doesn't run until I click "start service" The Base Filtering Engine...
System Security
Windows Defender don't start-up immediately
Hello, I am using Windows Defender in W8. I see that the Defender becomes only active after a few minutes. If the Defender is activated before than everthing is in red , and unable to start it. The fault code is than 0x80070426.
System Security
Cant start windows security service
Yesterday I had to reset to default settings after my computer had a nervous breakdown. I re installed windows 8 and everything seemed fine. I have now noticed that windows security centre will not start. When i go to action centre and try to start it i get message saying security centre...
System Security

Eight Forums Android App Eight Forums IOS App Follow us on Facebook