How to Set a Proxy in a Group PolicyIn Feburary 2016 25,

In Feburary 2016 25,
Open the Start menu. Type 'gpedit.msc' in the 'Search' box. Click 'gpedit.msc' in the search results to launch the Group Policy Editor.
Click the arrow next to 'User Settings' in the console tree, in the left-side window panel, to expand the branch. Expand the 'Windows Settings' branch. Expand the 'Internet Explorer Maintenance' branch.
Highlight 'Connection' in the left-side window panel. Double-click 'Proxy Settings' in the right-side window panel. A 'Proxy Settings' dialog box will open.
Put a check mark in the box next to 'Enable proxy settings.'
Type the proxy server's web or IP address in the appropriate 'Address of proxy' field box for the protocol the address uses ('http,' secure 'https,' 'ftp,' gopher, or socks).
Enter the port number the proxy uses in the appropriate 'Port' field box.
Click 'Apply' to save and deploy the Internet Explorer group policy proxy settings. Click 'OK' to close the Proxy Settings dialog box.
Prevent Users from Changing Proxy Settings
Open the Group Policy Editor.
Navigate to the 'User Configuration' \ 'Administrative Templates' \ 'Windows Components' branch of the console tree.
Highlight 'Internet Explorer.'
Double-click 'Disable changing proxy settings' in the right-side window panel. The 'Disable changing proxy settings Properties' dialog box will open.
Select 'Enable.' Click 'Apply' to save and deploy the group policy. Click 'OK' to close the dialog box.
In Feburary 2016 25,