Windows Defender will not turn on

Jaeger

New Member
Messages
1
I've spent more than two hours on trying to fix this mess. I did several fixes that did not work at all.

It was working last night then I decided to refresh my PC. I installed several programs including drivers, windows updates and Malware Bytes (No Anti-virus installed).

Today, I found out Windows Defender was not working. I did try launching it from search, action center, and attempted to manually start which clearly didn't work. It is set to automatic in services. All other tabs such as Update, History, and Setting are greyed out.

I always get the response "The service couldn't be started. This programs service has stopped. You can start the service manually or restart your computer, which will start the service."

I also deactivated UAC.
 

My Computer

System One

  • OS
    Windows 8
    Computer type
    PC/Desktop
Any triggering events that lead up to your issue? Did you recently uninstall a 3rd-party AV? Any chance you have been infected by malware?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    CPU
    Intel G2020
    Motherboard
    ASRock B75M-DGS R2.0
    Memory
    8GBs @ 1333 MHz
    Hard Drives
    Samsung 840 EVO
    PSU
    400w
    Internet Speed
    57/11
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