Skip to main content

Microsoft is secretly building Polaris, a slimmer, more modern version of Windows

A woman sits by a desk and types on a laptop that runs Windows 10.
Image used with permission by copyright holder
Microsoft’s latest internal project is reportedly a new pared-down version of Windows code-named Polaris. This new iteration isn’t a successor to Windows 10, not in the traditional sense. Instead, it’s an alternative operating system more like iOS or Chrome OS — a lightweight OS designed for devices like ultra-mobile laptops, 2-in-1s, and tablets. And according to Windows Central, it could be the future of Windows.

So what is it, exactly? Good question. Last January, we reported on efforts to develop an “adaptive shell” called C-Shell for Windows 10 so that the platform can properly scale out across PC, mobile, console, HoloLens, and embedded devices. Different products running Windows would use different iterations of that shell. And according to noted Microsoft-watcher Mary Jo Foley, Polaris is Microsoft’s effort to build a desktop Shell using C-Shell to run on top of the Windows Core OS.

Recommended Videos

Maybe, maybe not. Here’s another theory: Polaris could take over for Windows 10 S, the pared-down student version of Windows 10 that Microsoft is using to test the lightweight OS waters.

Windows 10 S could be seen as something of a trial balloon here, with Microsoft angling toward the education market to see how a pared-down Windows experience would go over with the average user.

Polaris reportedly aims to strip out all the legacy components that make Windows 10 a full-featured operating system in favor of a system designed around the basics — like Chrome OS. An operating system designed for people who typically work out of a web browser. The new Windows Polaris would be quicker, more nimble, and carry a lot less baggage.

Polaris would, according to Window Central, be built entirely on Microsoft’s Universal Windows Platform, or UWP, making it a much more hospitable environment to existing UWP apps and potentially offer battery life and performance gains. (The world’s reaction to UWP has been … somewhat mixed.)

“The current Windows Shell is one of the major legacy components that Microsoft is replacing in Polaris; it is also stripping out legacy, unneeded Win32 components and apps like Notepad or Paint in favor of a UWP experience, just like Windows 10 Mobile,” Windows Central reports.

It’s an interesting move and it certainly makes sense with Microsoft’s recent shift toward unifying its Windows experience across all of its platforms, but it’s unclear whether or not Polaris would end up seeing widespread adoption. Currently, Chromebooks offer a unique niche for lightweight on-the-go computing, and Windows 10 exists in its full version on laptops and mobile devices up and down the price spectrum without any issues. Pulling out functionality in favor of marginal gains in performance and battery life might not appeal to the average laptop, tablet, or 2-in-1 user.

Jayce Wagner
Former Digital Trends Contributor
A staff writer for the Computing section, Jayce covers a little bit of everything -- hardware, gaming, and occasionally VR.
Another annoying bug is spoiling the fun in Windows 11 24H2
The Surface Pro 11 on a white table in front of a window.

The latest big update to Windows 11 has already caused its fair share of headaches. This time the trouble is with File Explorer. A new bug makes it difficult to open the File Explorer app as it makes the menu appear outside the screen, Windows Latest reports.

The latest bug impacts the "See more" menu, making it practically impossible to access when you select the ellipses. Instead, it only shows you a few of the available options. This error usually appears when you use File Explorer in full screen. When you're able to see all the options in the "See more" menu, you'll see options such as:

Read more
Gamers are finally flocking to Windows 11 after 3 years
Spider-man running on the Asus ROG PG42UQG.

Windows 11 is getting a lot more popular lately. In the latest Steam hardware survey, Valve clocked that 51.97% of its user base is now using Windows 11, which is a 4.28% increase compared to last month and the highest share the operating system has ever seen, despite being readily available for over three years.

Windows 10, the second-most popular operating system on Steam, fell by 2.71%, and now makes up 45.95% of the users Valve surveyed. Just a couple of months ago, when Valve released its August survey results, Windows 11 overtook Windows 10 for the first time in the hardware survey. The gap is only widening now, with the share lost by Windows 10 going almost directly to Windows 11. Earlier this year, Windows 11 adoption was actually down on the Steam hardware survey, with some claiming that Windows 10 offered better gaming performance.

Read more
You have one year to safely use Windows 10 before you’ll need to pay
Windows 11 logo on a laptop.

Microsoft will be allowing consumers to join its Extended Security Updates (ESU) program for the first time next year, and it announced the program pricing today in a blog post. The official end-of-service date for Windows 10 is October 14, 2025, but by paying $30 to join the ESU program, you can receive an extra year of security updates. This will allow you to continue safely using Windows 10 until around October 2026, a full two years from now.

By the time support for Windows 10 ends, it will be almost exactly four years since Windows 11 launched and a decade since Windows 10 launched. It takes a lot of work to keep an operating system secure and running smoothly, which is why a company like Microsoft can't just endlessly support every version of Windows it's ever shipped. It would end up costing a lot more money than it made -- and that's not how businesses function.

Read more