Proxy Authentication in Windows 8 Metro Apps

1. Open "Local Group Policy Editor"

2. Navigate to "Computer Configuration - Administrative Templates – Network - Network Isolation"

3. Enable "Proxy Definitions Are Authoritative"

4. "Subnet definitions are Authoritative"

5. Enable and "Internet Proxy Server for all apps" to “<Address>:<Port>” for example IIIT, Jabalpur proxy server "172.27.16.154:3128" or ”172.27.16.14:3128” or 172.27.16.8:3128

6. Enable and "Intranet Proxy Server for all apps" to “<Address>:<Port>” for example IIIT, Jabalpur proxy server "172.27.16.154:3128" or ”172.27.16.14:3128” or 172.27.16.8:3128

7. Done.