VM-ben tettem egy próbát:
GPO - User Configuration - Policies - Aministrative Templates: Policy definitions... - Control Panel - Prohibit access to Control Panel and PC Settings: Enabled
GPO - User Configuration - Preferences - Windows Settings - Registry - New -> Registry Item:
ProxyEnable: 1
ProxyOverride: ;< local >
ProxyServer: 10.0.0.250:3128
A Firefox persze nem törődik vele, Chrome ok.
A "Prohibit access to Control Panel and PC Settings: Not Configured" esetén a Chrome is kilátott a netre. :o
Powershell internet/proxy beállítások:
Get-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings'