Windows 10: No Internet Connection, No Diagnostics Policy Service

Please help. My laptop is for some unknown reason not connecting to the internet via wifi or ethernet. It will also not diagnose the problem as it says The Diagnostics Policy Service is not running and it cannot fix it. Please can someone advise - I'm not super techy. but I am logical! *Smile

:)

 

Wi-Fi is on // No connection (after Windows Update)

On Oct 13 windows updated.

The update must've invited malware into my computer. I tried to run my antivirus after the update but it said there's no connection. Google chrome lost connection as well and then I got a pop-up saying that Windows Defender found and blocked a "Severe Trojan
threat". So I deleted it and I still don't have connection... (weirdly) the only thing that works is the Explorer app. I have internet; the Wi-Fi works just fine but, everything else doesn't connect. It's something internal that must be causing
the problem and it all started after the update.

P.S.

It also changed my network from private to public so I had to fix that.

And YES, I did allow these programs through the Firewall so that's not the problem.

 

Windows 10 Dec 2016 update - no internet connection

I forgot to mention that I tried troubleshooting the Internet connection from control panel. This diagnosed "diagnostics policy service is not running"