Windows 10: Message that defender has disabled computer and internet - is it real?

My mom turned on her computer today and received this message.Microsoft Windows Defender Has Disabled Your Computer And Internet Connection for Suspicious Activity From FacebookPlease contact Microsoft support to unlock your computer and activate Facebook Account. Toll Free Number 1-855-470-0598She has tried turning it off but the message was still there when it came back. Could anyone confirm if this is real or fake.Thank youMichelle

:)

 

Windows Defender Disabled

Hello Steve,

Thank you for showing interest in Windows 10.

I would like to ask you:

• Have you installed any third-party security software on your computer?

This issue usually arises when you have installed a security software on your computer. From Windows 8 onwards, the Windows Defender is equipped with all the functionalities of an anti-virus software including real-time protection which was not present in
Windows Defender in Windows 7.

If you have any third-party security software installed, I would suggest you to uninstall that software and then upgrade to Windows 10. As it is not recommended to keep more than 1 anti-virus software with real-time protection.

Important Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable/uninstall your antivirus software. If you have to temporarily disable/uninstall
it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.

Whenever you install a third-party security software in Windows 8.1 or Windows 10, it automatically disables Windows Defender to avoid conflicts.

Hope this information was helpful.

 

Windows defender couldnt be enable after being disabled

Hello Imtiaz,

Thank you for posting the query on Microsoft Community.

I appreciate your interest on Windows 10.

Before we proceed I would like you to answer the following questions:

• 
  Have you installed any third-party security software on your computer?
  
• 
  Are you using administrator account?
  
• 
  Is the computer connected to domain?
  
• 
  Did you try restarting the computer and check?
  

I suggest you to follow the methods below:

Method 1

update the group policy and check.

• 
  Press Windows key + R.
  
• 
  Type Gpupdate and press enter.
  
• 
  Then try enabling the Windows defender in group policy and check.
  

This issue usually arises when you have installed a security software on your computer. From Windows 8 onwards, the Windows Defender is equipped with all the functionalities of an anti-virus software including real-time protection which was not
present in Windows Defender in Windows 7.

Method 2

If you have any third-party security software installed, I would suggest you to uninstall thatsoftware and then upgrade to Windows 10. As it is not recommended to keep more than 1 anti-virus software with real-time protection.

Important Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable/uninstall your antivirus software. If you have to temporarily disable/uninstall
it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.

Whenever you install a third-party security software in Windows 8.1 or Windows 10, it automatically disables Windows Defender to avoid conflicts.

Method 3

I suggest you to follow the steps below to turn on the windows defender.

• 
  Type control panel in the search box.
  
• 
  Choose the Action Center under
  System and Security option.
  
• 
  You see the notification that Windows defender is turned off below the
  Security label. Hit the Turn on now tab to active the Windows Defender again.
  

Please get back to us with updated status. We will be happy to assist you further.

 

Untable to Control Windows Defender Real-time Protection On/Off

Sometimes, we need to turn off Windows Defender Real-time protection. In my experience, this software may cause some error to run Android Emulator such as BigNox. It also slowing down my Android Studio. To disable Windows Defender Real-time protection, I
do these steps:

1. Run Windows PowerShell as administrator
2. execute set-mppreference -DisableRealtimeMonitoring 1

Windows PowerShell

Copyright (C) Microsoft Corporation. All rights reserved.

PS C:\WINDOWS\system32> set-mppreference -DisableRealtimeMonitoring 1

PS C:\WINDOWS\system32>

In Windows registry it will create

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Real-Time Protection -> DisableRealtimeMonitoring REG_DWORD 1

Tested on Windows 10 Version 10.0.17134 Build 17134

But, during my computer idle, windows always put Real-time protection on. It is so annoying. I want to control Real-time Protection manually.