Just changed two rules in Windows Firewall to blocked and it appears to no longer send anything. https://i.imgur.com/a5yu5vb.png Wondering if I should go through all the Windows stuff there and turn them off. Edit: just did (except for Edge and obvious internet related stuff). Is there a way to change Firewall rules with a registry tweak? That would be the ideal way to distribute this.
Use Powershell: https://technet.microsoft.com/en-us/library/jj554843%28v=wps... You can get the rules and enable/disable them easily.
Typing
> New-NetFirewallRule -DisplayName "Search" -Direction Outbound -Action Block -Profile "Domain, Private, Public" -Program "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe"
in elevated Powershell should work.