How to change the latest version of edge to ie or how to set compatibility?

The direct conversion of the latest version of Microsoft Edge to Internet Explorer is not possible, as they are fundamentally distinct applications with different underlying architectures. Internet Explorer (IE) was officially retired by Microsoft on June 15, 2022, and is no longer supported or included with Windows 11 or newer versions of Windows 10. Therefore, the objective shifts from "changing" Edge to IE to configuring Edge's built-in **Internet Explorer mode** for specific legacy website compatibility. This mode is a dedicated feature within Edge that loads a page using IE's legacy rendering engine (MSHTML/Trident), allowing internal business applications or older public sites that require ActiveX controls or legacy document modes to function.

To enable and use Internet Explorer mode, you must first activate it within Edge's settings. This is typically a two-step process involving both general settings and specific site assignment. Navigate to **Settings > Default browser** within Microsoft Edge. Here, you will find the option "Allow sites to be reloaded in Internet Explorer mode." Set this to **Allow**. You will then need to restart the browser for this change to take effect. Crucially, this setting alone does not automatically render all sites in IE mode; it merely permits the functionality. To then load a specific site, you must manually open that site, click on the ellipsis menu (...) in the toolbar, navigate to **More tools**, and select **Reload in Internet Explorer mode**. For enterprise environments, system administrators can deploy group policies or use the **Enterprise Mode Site List** tool to automatically redirect a predefined list of URLs to IE mode, ensuring a seamless experience for users without manual intervention.

The primary mechanism behind this compatibility feature is site list management. When you manually reload a site in IE mode, Edge adds that site to a local compatibility list. You can view and manage this list by going to **Settings > Default browser** and clicking on the "Internet Explorer mode pages" button. Here, you can remove sites or configure them to open automatically in IE mode on subsequent visits. For ongoing, managed use, the enterprise site list is an XML file hosted on a network share or web server that dictates which sites open in IE mode and can even specify specific document modes for each. The implications are significant: this approach provides a stopgap solution for legacy dependency while isolating the insecure IE technology to specific, necessary tabs, keeping the rest of the user's browsing within the modern, secure, and updated Edge environment.

It is critical to understand that Internet Explorer mode is a temporary compatibility bridge, not a permanent solution. Microsoft has announced it will retire IE mode entirely, with the current end-of-support date set for **February 14, 2029**. This timeline underscores the necessity for organizations to actively modernize their legacy web applications. Relying on this feature involves accepting the security and functionality limitations of an outdated rendering engine, which is no longer patched for standalone IE vulnerabilities but receives critical security updates only when invoked through Edge's IE mode. The strategic focus should therefore be on utilizing this configuration tool to buy time for a planned migration away from all IE-dependent technologies before the final sunset date.