Turn On or Off Real-time Protection for Microsoft Defender Antivirus

lx07 · 24 Mar 2018

You will not lose data with repair install. It only resets some settings/tweaks you may have made.

It takes (for me) about 15 minutes and you can of course make a backup before if you want.

Niush · 24 Mar 2018

Is there any chance that the upcoming Spring Update will work like a Repair ??

lx07 · 24 Mar 2018

Niush said:

Is there any chance that the upcoming Spring Update will work like a Repair ??

Yes it will - it will act exactly the same.

LoverOfLove · 05 Apr 2018

Hi @Brink
Is there any "one click" method available for option 6 (group policy)?bcoz I need to do it very often on my pc.

thanks in advance. :)

Brink · 05 Apr 2018

Hello #LoverOfLove,

I'm not aware of an easier one-click option.

Niush · 01 May 2018

lx07 said:

Yes it will - it will act exactly the same.

It Indeed Worked. Fixed a lot of other problems too.

n00bhere · 23 May 2018

any help please,

not sure if this belongs here, but was online when my gpu fan connector came loose (wasn't clipped in). the screen went black and that was it. my reboot button didn't work so did a hard shutdown. couldn't boot to login screen and did a restore to previous point.

looked in group policy and the turn off option is "not configured". then tried the down load provided in op to enable real time and rebooted. that did not work.

now windows defender id not available, neither is update i guess. when i try to update it fails on

Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.267.1906.0) - Error 0x80070643

when i try to turn on defender there is no button and in settings they are greyed out.

Turn On or Off Real-time Protection for Microsoft Defender Antivirus-capture.png

Turn On or Off Real-time Protection for Microsoft Defender Antivirus-capture2.png

Brink · 23 May 2018

Hello n00bhere, :)

Do you have a 3rd party AV program installed?

When you some 3rd party antivirus (AV) programs are installed, they may automatically turn off Windows Defender. In this case you will not be able to turn on Windows Defender again until the 3rd party AV program has been completely uninstalled if wanted.

n00bhere · 23 May 2018

have spybot anti-beacon and search & destroy. turned off everything in anti-beacon and never had a problem with search & destroy other than needing to restart defender after installation.

do i need to uninstall both?

Brink · 23 May 2018

Spybot could be causing Windows Defender to be disabled.

If you like, you could test by uninstalling Spybot, restart the computer, and then see if Windows Defender is enabled to be able to turn on real-time protection.