I am using Windows 8 Enterprise (MSDN), behind a proxy.
I configured the proxy in IE network settings (actually, not a proxy, but a .pac file with config), and when trying to connect to the internet, everything works fine in IE - however, the rest of the system seems not to use those settings.
So.. concrete case: add and remove features (like Hyper-V or .Net Framework 3.5) seems to go online for every single feature. This constantly fails. I cannot add any features.
Another concrete example: inside a Hyper-V guest, I cannot get internet access.
It would also be nice, if (on top of that) everything would work correctly (all apps and everything else, like the system, using the same proxy settings).
How can I configure proxy settings for all apps, system, IE etc?