Windows 10: Windows Defender blocked and it won't open again.

Discus and support Windows Defender blocked and it won't open again. in AntiVirus, Firewalls and System Security to solve the problem; Dear Sirs, I do experience some problems with Windows Defender. It is blocked and when I've been asked to restart it a window open telling me that... Discussion in 'AntiVirus, Firewalls and System Security' started by GiorgioDel Medico, Jul 4, 2018.

  1. Windows Defender blocked and it won't open again.


    Dear Sirs,

    I do experience some problems with Windows Defender. It is blocked and when I've been asked to restart it a window open telling me that there is a problem and to try later. I uninstall other apps like "Malware Crush" or "Master PC Cleaner" as I've been told that they can interfere with the running of Windows Defender but I still have the same problem.

    I am not really an expert on these things so if there is someone out there who can help I would be very grateful!

    Thank you for your attention!

    :)
     
    GiorgioDel Medico, Jul 4, 2018
    #1
  2. Anne Ros Win User

    Windows Defender is blocking too much saying it viruses

    Hi Sam,

    Based on the screenshot that you've provided, Controlled Folder Access is turned on, blocking most apps that you're using. We suggest that you turn it off to allow blocked apps in Windows Defender. Follow the steps below:

    • Select Start > Settings.
    • Choose Update & security > Windows Defender.
    • Select Open Windows Defender Security Center.
    • Select Virus & threat protection, and then choose Virus & threat protection settings.
    • Under Controlled folder access, turn it on or off.
    • Once done, try accessing the apps and see if you can now access them.

    Should you need further assistance, feel free to post back.
     
    Anne Ros, Jul 4, 2018
    #2
  3. windows 10 apps won,t open

    Hi Robert,

    Thanks for posting your query on Microsoft Community.

    We appreciate you for trying the troubleshooting steps.



    I suggest you to try the below steps and check if it helps.

    Step 1: Run Windows app troubleshooter.

    Refer to the below link:

    http://windows.microsoft.com/en-us/windows-10/run-the-troubleshooter-for-windows-apps

    Step 2: Run shell commands for Windows store and check if it helps.

    Follow the below steps:


    • Press Windows key + X and select
      Command prompt(Admin)
      to open elevated Command prompt.

    • Type the following commands.



      powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRoot\WinStore\AppxManifest.xml

    • Hit enter, the blackscreen will appear still for a couple of seconds. After a couple of second a new line saying C:\.... will appear.

    • Close Command Prompt.

    • Try to start the Windows Store again.


    Hope it helps, reply to us with the status of your issue. We will be happy to assist you.
     
    Santosh_Rai, Jul 4, 2018
    #3
  4. tops Win User

    Windows Defender blocked and it won't open again.

    Skype won´t wok in 17063


    Skype Won´t work... games won´t work...

    Making backup and re-format...

    Maybe I Install a Windows 7 again, At least, all of my games run smoothly ...Sadness!!

    *Banghead
     
    tops, Jul 4, 2018
    #4
Thema:

Windows Defender blocked and it won't open again.

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