What is Windows K2? Inside Microsoft’s big plan to SAVE Windows 11 and win back trust from users.

In March, Windows president Pavan Davuluri confirmed plans to address serious "paint points" across Windows 11 that have eroded user trust and generated a wave of negative sentiment around the OS, spawned from Microsoft's relentless push into AI and enshittification while neglecting core Windows fundamentals such as performance and reliability.

Of course, what Microsoft says externally isn't always reflective of what it's really thinking internally, but in this case, my sources say the company is serious about turning Windows 11 into a platform that people are proud to use. By the end of 2026 and into 2027, Microsoft is striving to have Windows 11 in a much better place.

According to my sources, this effort is codenamed Windows K2. It’s a project that was put together in the second half of last year that addresses the biggest complaints that people have about Windows 11 today. Everything from an overabundance of AI features and bloat to performance issues and reliability mishaps will be tackled.

Windows K2 isn’t a dedicated release of the OS. Instead, K2 is an ongoing initiative that will ensure Windows quality remains both high and consistent across current and future versions, building an OS that is always focused on improvements to fundamentals to ensure foundational aspects of the platform are continuously strong.

Performance, Craft, and Reliability

These are the three core pillars of focus with the Windows K2 initiative.

These pillars are what drive the Windows experience. If one of these pillars falls behind, the entire product suffers as a result. With Windows K2, Microsoft is working to ensure these three pillars are strong by addressing feedback directly from users and Insiders, analyzing telemetry data, and conducting focus groups with customers.

I'm told that K2 also looks inward at the teams themselves. It's not just about addressing feedback and fixing Windows 11, but it's also about how teams internally can better contribute code to the Windows product. I understand there's a huge culture shift happening internally right now that drives the K2 initiative.

In the past, Windows has been obsessed with agility. It was keen to ship new features as quickly and as frequently as possible, but this ultimately came at the cost of quality and reliability. While teams were able to get new features out the door fast, users became frustrated with an OS that never stood still and becoming ever more problematic.

One of the biggest cultural changes internally that I've heard about is that teams are no longer striving to ship fast. The obsession with with being agile has been replaced with an obsession with quality. I understand that new features aren't allowed near public preview builds before reaching a certain quality bar internally now, and while that bar has always existed, the bar is much higher now.

There's a lesser known fourth pillar, too: Community. The Windows K2 initiative is eager to rebuild a community of fans and enthusiasts around Windows. It's bringing back Windows Insider meetups, and appointing members of the Windows team to be more forward facing on social media and in forums to respond directly to feedback from people online.

Performance and Reliability

Performance is a top priority for the Windows K2 effort. In documentation viewed by Windows Central, Microsoft is aware that it has let performance slip in apps like File Explorer and games, as well as system UI elements such as context menus. Windows 10 is often found to be faster than Windows 11 in certain benchmarks, and the company is moving to change this.

For gaming, Microsoft views steamOS as the benchmark, and is working to optimize the platform so that steamOS and Windows gaming performance are comparable. Within the next year or two, it believes that Windows will be able to truly compete head-to-head with steamOS in gaming performance on identical hardware due to foundational changes that are being made to the platform in the coming months.

File Explorer is set to gain some major performance improvements too, speeding up file navigation and processing, and improving the speed of search within the File Explorer app, with capabilities such as “instant filename search” coming. The company views a third-party app called File Pilot as the benchmark for these improvements.

Windows Update will also be improved, with the goal of making Windows 11 reliable enough so that a restart is only necessary once a month. Under the hood changes are also expected that are designed to make updating Windows more seamless, such as only updating display and audio drivers when restarting instead of during active use.

I’m told there’s also a concerted effort to debloat Windows 11 too, focusing on minimizing memory use at idle and reducing the overall footprint of the OS so that it runs better on low-end hardware as well as smoother on high-end systems and gaming handhelds.

Craft and UI

Craft is also a huge area of focus for K2, addressing user experience complaints and bringing back fan favorite features that have been missing since Windows 11's inception. Microsoft has already confirmed plans to bring back the ability to move and resize the Taskbar, one of Windows 11's most requested features.

The K2 initiative is also pushing teams internally lean more heavily on its in-house Windows UI framework. WinUI 3 is a core foundational aspect of K2, with performance improvements in the works to ensure these native UI surfaces are faster and more reliable so that it can be used in more areas of the system, including where legacy interfaces currently exist such as Run and Control Panel.

One of the ways I'm told this is happening is with a new System Compositor for WinUI 3, which will reduce latency and memory overhead across the UI so that elements such as the Start menu and Taskbar are always responsive and available to use, even under heavy system load.

In fact, with this new compositor in place, Microsoft is rebuilding the Start menu from scratch with WinUI 3 natively. I'm told this new Start menu will be up to 60% faster and more responsive than the existing one, while also sporting more customization options such as the ability to resize it and hide sections of the menu.

The K2 project also address some of the big issues around enshittification. I'm told Microsoft is removing ads from the Start menu, which is no small feat from a financial perspective. It's also planning to stop MSN from appearing by default in the Widgets Board, instead prioritizing the Widgets Panel with MSN being a secondary functionality instead of the primary one.

K2 evolves

Windows K2 doesn't have a completion date. It's an ongoing initiative that essentially defines how Windows should be built and what it should prioritize going forward. The goal is to fix up Windows 11 and reposition the platform as something people are proud to use, and maintain that consistently.

It's a positive movement that Windows desperately needs, and is helping to position the platform as a viable competitor well into the future. Changes and improvements that are part of the Windows K2 initiative are already beginning to ship, with many more shipping in preview over the summer.

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