Windows 10: Windows Defender stopped working

Discus and support Windows Defender stopped working in Windows 10 BSOD Crashes and Debugging to solve the problem; When I click on Windows Defender icon, I get a message that Windows Defender is not installed on the PC.Your suggestions?... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by KamalAhuja, Feb 15, 2020 at 5:27 AM.

  1. Windows Defender stopped working


    When I click on Windows Defender icon, I get a message that Windows Defender is not installed on the PC.Your suggestions?

    :)
     

  2. Windows 10 defender stops my work

    Hello,

    Thank you for posting your query on Microsoft Community.

    If Windows Defender is stopping you for performing some task and it is important for you then you may disable Windows Defender for some time and then enable it after the completion of the task.

    In order to turn off Windows defender you need to perform the steps provided below and see if it helps.

    • Press Windows key or click on Start.
    • Type Windows Defender in the search box.
    • Click on Windows Defender Settings.
    • Toggle the "Real-time protection" option to Off. This will disable Windows Defender
      in Windows 10.
    • Now try to convert a pdf to a ppt and see the difference.

    Hope this would help. If issue still persists post back with current status of your computer and result of the proposed suggestion, we will be happy to assist you.

    Regards,
     
    Ramesh.Kumar, Feb 15, 2020 at 5:32 AM
    #2
  3. Windows Defender stops scanning

    You can follow these steps to disable Windows Defender from Windows 10:

    • Type services in the Cortana search field, then click
      Services.
    • Locate then right-click Windows Defender Service.
    • Choose Stop.
    • Restart your computer.

    Let us know if you have further queries.

    Regards.
     
    Michelle Her, Feb 15, 2020 at 5:32 AM
    #3
  4. Le Boule Win User

    Windows Defender stopped working

    Windows Defender Stopped Working

    Any error messages? Can you download other files? Any other security software installed? How long have you been using Defender? Any reason to suspect your computer is compromised by malware?

    You may want to scan with the Emsisoft Emergency Kit (a free program): Как обнаружить и удалить угрозы с помощью Emsisoft Emergency Kit | Emsisoft | Security Blog If
    necessary boot into Safe Mode with Networking to download the scanner or use another computer, put the EEK file on a flash drive and insert the flash drive in the infected computer...you can run the scanner from the flash drive. Other scanners that may help
    with this issue are listed in List
    of Malware Removal Tools
    Since Defender is not working you might want to try the Microsoft Safety Scanner...

    Go to Security and Maintenance, look in 'Security' and see what program is listed under Virus Protection. Windows Defender will not be enabled and functioning properly if there is a program other than Windows Defender listed.

    See the Answer of quietman7
    - MVP
    in
    https://answers.microsoft.com/en-us/protect/forum/protect_defender-protect_updating/windowsdefender-wont-turn-on/c502c63f-2ffe-4cfd-8b6b-bdfd086cfae0


    Note the following excerpts from his post:

    sometimes you may receive a message indicating your system has no protection...click here to turn on Windows Defender. If not, and Defender remains disabled, you will need to manually turn it on.

    If Defender is still not running, check to make sure the Windows Defender service
    is started
    .

    Sometimes it may take a couple of computer reboots after performing the above steps to ensure Windows Defender is up and running properly.

    Also see Problems
    starting Windows Defender in Windows 8/8.1/10


    If you can't get this problem resolved suggest you post back in this thread and provide additional information.

    Alternatively - - -

    You may prefer to install a third party antimalware program (which should disable Windows Defender).

    There are a number of viable free and paid options available – take your pick.

    Choosing an Anti-Virus Program



    Is Windows Defender The Best For Windows 10?
    Good article but ignore the ads.

    http://windows.microsoft.com/en-US/windows/antivirus-partners#AVtabs=win10

    Regards…

    Top 10 Ways PUPs Sneak Onto Your Computer. And How To Avoid Them. | Emsisoft | Security Blog
     
Thema:

Windows Defender stopped working

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