Question What's happened to Windows Defender, my security, and Ethernet? And how can these be fixed?

[VermilionNeko]

Hi

I'm currently having a strange problem related to my firewall, Ethernet connection, and security. I'm sure they're linked. Basically, I'm unable to add exclusions to Windows Defender and I get this message:



I'm not even able to turn off Real-time Protection either. Then, when I tried briefly disabling my Ethernet connection via Network Connections, I get this error:



I'm not even able to check the Properties either.



I've tried following the suggestion linked here - https://answers.microsoft.com/en-us...nnection/35908048-559e-4339-9c60-405fc3896178 - and I've tried disabling and uninstalling the drivers for the adapter via the Device Manager and restarting. Problem remains.

To add to this, I'm not even able to edit permissions. Whenever I go to the Security tab of a file/folder, and try to edit a user or group, I get this pop up:



Any ideas/suggestions? I'm totally stuck with this and I don't know what to do/try.

Thanks

 

[Lutfij]

See if this works for you;

View: https://www.youtube.com/watch?v=Ft3HHBqdD8k


If that doesn't work and the issue cropped up mysteriously after an OS update, try and perform a system restore