Microsoft cuts Internet Explorer in latest Insider build of Windows 10

Internet Explorer is moving towards retirement, and it just took another big step in the latest Insider build of Windows 10.

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What you need to know

Microsoft just rolled out Windows 10 Build 21387 to Insiders in the Dev Channel. The build doesn’t have any new features, but it does remove or turn off some notable features. Starting with Build 21387, Microsoft has retired the Internet Explorer 11 desktop application. This comes as no surprise, as Microsoft already announced theend of support for Internet Explorer.

The build also turns off the “Eco mode” feature in the Task Manager, though this feature seems set to make a return in the future. In therelease notes of Build 21387, Microsoft explains that the feature was turned off while it refines the experience.

Here are all of the changes found in Windows 10 Build 21387:

There’s also a long list of fixes in the build:

You can grab the latest build now through Windows Update if you’re a Dev Channel Insider.

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Sean Endicott is a tech journalist at Windows Central, specializing in Windows, Microsoft software, AI, and PCs. He’s covered major launches, from Windows 10 and 11 to the rise of AI tools like ChatGPT. Sean’s journey began with the Lumia 740, leading to strong ties with app developers. Outside writing, he coaches American football, utilizing Microsoft services to manage his team. He studied broadcast journalism at Nottingham Trent University and is active on X @SeanEndicott_ and Threads @sean_endicott_.