Windows 10: Windows Defender Not Working/Showing Options to enable Real Time Protection/Not restarting

I am using Windows 10 Pro 1909 x64 version updated to the February 2020 cumulative update.


My update stopped working with the error 0X8008005 which was fixed by a solution by @Jose J Pascual on this forum.


But along with my update, the defender stopped working.


I have tried everything possible which includes:


1. Changing the group policies

2. Changing registry entries

3. Uninstalling several applications which might have affected the defender

4. Force closing and restarting various services

5. Everything that I could possibly find on the internet


But the defender just does not turn on. While going through the solutions, I found that MSASCui.exe is missing from the folder which I am assuming is the issue. But I also could not find a downloadable version of it online.


This is happening the second time. The first time, I had to format my entire system and reinstall windows in order to get things back in order. But this time I am not in a state to be able to format my system. So I will need a fix asap. Please. My system is running without any antivirus at this point. And I do not want to install a third-party antivirus. Please help me with a solution, if there is any.














:)

 

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

Go here >
https://www.windowsphoneinfo.com/threads/turn-on-or-off-windows-defender-real-time-protection-in-windows-10.6805/

and see if one of these options help:

• Option Six: To Enable or Disable Windows Defender Real-time Protection in Group
  Policy
• Option Seven: To Enable or Disable Windows Defender Real-time Protection using
  a REG file

 

Windows Defender Real-time protection

You could use either Option 5 or Option 6 in this guide:

Turn On or Off Windows Defender Real-time Protection in Windows 10

Those options will let you disable Windows Defender Real-time Protection without being prompted it is turned off, and without it getting automatically turned back on later by Windows.

Meaning you can disable Windows Defender Real-time Protection as long as you wish, and then easily re-enable it when you're finished with your software tests.

 

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.