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Configuring Enterprise Mode in Windows 10
In Windows 10, Internet Explorer 11 behaves the same as Internet Explorer 11 on Windows 7 or Windows
8.1, using the Trident engine. This should help ease some Windows 10 migrations and reduce or
eliminate compatibility issues for customers who already upgraded to Internet Explorer 11. In enterprise
deployments, Microsoft recommends Internet Explorer 11 as a stable, reliable web platform for complex
line-of-business (LOB) apps designed to run in a web browser.
Note When you deploy the Long Term Servicing Branch of Windows 10 Enterprise,
Microsoft Edge is not available. In that configuration, unless you specifically change the
default settings, only Internet Explorer 11 is available.
By comparison, Microsoft Edge renders all webpages using the new EdgeHTML engine, using a
modern standards mode. You can switch to Internet Explorer 11 for sites that are on your intranet as
well as those included on a managed list of sites or on a Microsoft-managed Compatibility View list of
public websites. Microsoft Edge also can identify sites with legacy technology, such as ActiveX controls,
and offer to manually switch to Internet Explorer 11 for backward compatibility.
For external and internal sites that require a different document mode to render properly, particularly
sites designed for older versions of Internet Explorer, you can enable Enterprise Mode and then
create a list of sites with custom settings for each one. Once the sites are configured, there’s nothing
that end users need to know or do; Internet Explorer will switch modes as needed to render the site or
web app in the correct mode.
Enterprise Mode is available for all editions of Internet Explorer 11 but is turned off by default. You
won’t be able to use Enterprise Mode unless you turn it on by enabling a Group Policy Object or setting
a registry key.
Enterprise Mode works by checking addresses against a list of websites. When a site matches an address
on this list, Internet Explorer 11 uses the specified mode. On Windows 10, Microsoft Edge switches
to Internet Explorer 11 automatically for sites on the Enterprise Mode Site List.
To enable Enterprise Mode, you need to change a Group Policy setting. This can be accomplished
using domain settings or, for a single Windows 10 device, you can use the Local Group Policy Editor
(Gpedit.msc). Navigate to Computer Configuration > Administrative Templates > Windows
Components > Internet Explorer, and then enable the Use The Enterprise Mode IE Website List policy,
as shown in Figure 6-8.
86 CHAPTER 6 Microsoft Edge and Internet Explorer 11