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.

Loading...
  1. Windows Defender blocked and it won't open again. - Similar Threads - Defender blocked won't

  2. Windows Defender broken on Windows 11 and won't open

    in Windows 10 Gaming
    Windows Defender broken on Windows 11 and won't open: As the title states, I've been having problems opening Windows Defender.Initially, when I had Windows in my native language, I couldn't really even find the app by search means.Having switched Windows to English, I've been able to find it by regular search but trying to open...
  3. Windows Defender broken on Windows 11 and won't open

    in Windows 10 Software and Apps
    Windows Defender broken on Windows 11 and won't open: As the title states, I've been having problems opening Windows Defender.Initially, when I had Windows in my native language, I couldn't really even find the app by search means.Having switched Windows to English, I've been able to find it by regular search but trying to open...
  4. Windows Defender won't open

    in AntiVirus, Firewalls and System Security
    Windows Defender won't open: Lately, I have had so many issues with my Surface Pro X, to the point I want to smash it against the ground. I must have reset my PC about a dozen times with all the issues I encountered with their newest updates. Anyways, the issue I am encountering is Windows Defender will...
  5. HR Block Business 2019 won't open

    in Windows 10 Installation and Upgrade
    HR Block Business 2019 won't open: It is still installed but won't open. Here is the event message. Can this be fixed to open last year's return? Session Summary Information: Date/Time: 4/14/2021 11:06:39 AM ApplicationVersion: 19.2.7348.20130 CommandLine: "C:\Program Files x86\H&R BlockBusiness\H&R...
  6. Windows 10 firewall won't open/blocks a port

    in Windows 10 Customization
    Windows 10 firewall won't open/blocks a port: I already added a rule to the firewall with the port I want to be open. I added it as both TCP and UDP. It just doesn't work. When I disable windows firewall, the port is open. Why is that? Here's the exact procedure I did. Opened Windows Defender Firewall with Advanced...
  7. Windows Security/Defender won't stay open

    in AntiVirus, Firewalls and System Security
    Windows Security/Defender won't stay open: Often, when I'm away from my computer, my Windows Security/Windows Defender antivirus software closes itself, even though I prefer for it to be open all the time. I've checked the settings in the program, but can't find anything related. Advice? Thanks in advance....
  8. Windows Defender Won't Open

    in AntiVirus, Firewalls and System Security
    Windows Defender Won't Open: Hello! Just a quick question for the community. I have ran into a problem with Windows Defender. When I go to Settings > Windows Security, I can't open Windows Defender. All it says is that "You'll need a new app to open this windowsdefender." I've looked over the forum and...
  9. Windows Defender won't open

    in AntiVirus, Firewalls and System Security
    Windows Defender won't open: Hello, I have recently bought a new PC for gaming. I updated all drivers for windows and all updates. While looking I tried to open windows defender dashboard. Once I clicked it I just got the loading icon on my mouse and nothing ever opened. I can see it is turned on...
  10. Suddenly Windows Defender Won't Open

    in AntiVirus, Firewalls and System Security
    Suddenly Windows Defender Won't Open: Hi there: For some reason, when I tried to use Windows Defender today I get the following message: "This application is turned off by group policy. To allow this application to run, contact your security administrator to enable the program via group policy" WTF? I...

Users found this page by searching for:

  1. windows defender wont open

    ,
  2. unable to load hacked apps with windows defender