Windows 10: Cannot enable Tamper Protection in Registry

The Registry keyHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Featureshas a value called TamperProtection which is set to 1 instead of 5 where 5=enabled.It cannot be changed. Access Denied also to Permissions ownership and any security value.This is almost certainly the result of the VIRTOOL:Win32\DefenderTamperingRestore MALWARE.MSRT and MSERT do not help. The latter finds two infected files during the scan but the end result in the log says no infections.Can you help?

:)

 

Can't enable or find the option to enable Tamper Protection LTSC 2019

I am using Windows 10 LTSC 2019 (Build 17763).

I see no option to enable Tamper Protection in windows defender, nor any option in the registry in:

HKLM\Software\Microsoft\Windows Defender\Features

When I run Get-MpComputerStatus I see the tamper protection flag set to "False"

Is there a way of enabling Tamper protection, or is it because of the version of windows I am running? Thanks.

 

How to enable Tamper Protection on Windows Server?

Hi all,

Is it possible to enable Tamper Protection on Windows servers? I've navigated to where the option is supposed to be in Windows settings to turn it on as described here but I can't see it. I can see the option on my Windows 10 machine, however.

I've tried to turn it on by adding the registry key 'TamperProtection' in "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Features" but I get an error message which reads "Cannot create value: Error writing to the registry".

I tried to edit the Permissions for 'Features' by giving the Administrators group full control but when I click OK I get a Windows Security message which reads:
Unable to save permission changes on Features.
Access is denied.

Can anyone confirm if this is a feature on Windows servers, and if so how do I turn it on?

Thanks

 

Defender Tamper Protection/1903

Moderators: This thread deals with Defender Tamper Protection setting and 1903. If this would be better served in a different location, please feel free to move the post.

Just wondering if anyone who installed 1903 is having any unusual issue with Defender's Tamper Protection.
Here's the blow-by-blow.....

1. Friend and I were running 1809 and installed 1903 via Update Assistant on Tuesday, May 21st. No issues and Defender Tamper Protection was on (default setting).
2. Two days later, the 23rd, friend gets alert that Tamper Protection is off. She turned it on and it seems to be holding.
3. Today, I get the alert Tamper Protection is off and I turned it on. So far, it's holding.

I have no idea why Tamper Protection would turn off. Both computers are clean -- no viruses, trojans, malware or adware. We do not mess around in the registry and there is absolutely no third-party antivirus on either machine.

For now, I'm taking a wait-and-see if Tamper Protection turns off again. I don't know if it's a 1903 bug or not. Any ideas or suggestions would be appreciated.