Windows 10: Windows Defender's real time protecion doesn't activate

Some time ago, I have installed Malwarebytes, but when I knew WD won't be activated unless you have no other antivirus software, I uninstalled it. But now WD's real time protection can not be activated. Why is happening that? Also, I cannot update through Windows Update.

:)

 

I can't turn on Windows Defender Real Time Protection

We appreciate your response. We suggest that you try to turn on Windows Defender Real Time Protection from a Hidden Administrator account. To enable Hidden Administrator, the following are the steps:

• Right-click on the Start button and select Command Prompt (Admin).
• In the command prompt, type in net user administrator /active:yes and press Enter.
• Log out and log back in using the Administrator account.

Let us know if you require further assistance.

 

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.

 

How do I turn off real -time protection?

Hi Rahul,

If you have Windows 10, you are getting the latest antivirus protection with Windows Defender. Windows Defender actively helps in protecting your PC from malware (malicious software), viruses, and security threats. Windows Defender uses real-time protection.

To turn Windows Defender real-time protection on or off, follow the steps below:

• Select the Start button, then select Settings >
  Update & Security.
• Select Windows Defender, then turn Real-time protection
  on or off.

If the on /off button is greyed out, refer to the answer of José Antonio
Pontón Posada CEO on this thread for troubleshooting steps.

Let us know if you have other concerns.