Windows defender stop/start

Podgersda

Member
Hi, I am a newbie here and hope someone can help?
Just updated the Windows Defender and having problems getting it to start.
I try to start it manually via control panel and when I click start, it stops after a few seconds with this message...sorry it is quite long!:

"The windows defender service on local computer started and then stopped. Some services stop automatically if they are not in use by other services or programs"

What does this mean and how can I get windows defender to run?

Thank you:confused:
 

My Computer

Welcome
The best Antivirus for Windows is probably Microsoft Security Essentials, Defender is part of that Anti Virus. I suggest that you uninstall your current anti virus, install Security Essentials and uninstall Defender. If you use Security Essentials in conjunction with Malwarebyes, you will have some of the best protection available.
 

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Keyboard
    Dell USB
    Mouse
    Dell USB 4 button optical
    Other Info
    DSL provided by ATT
thanks for this, but as I only know how to switch this PC on, I would be lost with your answer! do you know what is causing WD to start thyen stop?
Welcome
The best Antivirus for Windows is probably Microsoft Security Essentials, Defender is part of that Anti Virus. I suggest that you uninstall your current anti virus, install Security Essentials and uninstall Defender. If you use Security Essentials in conjunction with Malwarebyes, you will have some of the best protection available.
 

My Computer

What anti virus do you use?
 

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Keyboard
    Dell USB
    Mouse
    Dell USB 4 button optical
    Other Info
    DSL provided by ATT
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