In March I wrote to you about our commitment to Windows quality. Four months in, the team and I have been reflecting on our progress and wanted to share an update. We know there is more to do, especially in getting these improvements to all customers. We’re not slowing down. What we said we'd focus on In my letter, there was a list of immediate changes we committed to making. This included:

• More taskbar customization
• Integrating AI where it’s most meaningful
• Reducing disruption from Windows Updates
• Faster and more dependable File Explorer
• More control over widgets and feed experiences
• A simpler, more transparent Windows Insider Program
• Improving the Feedback Hub experience

We also named three areas of focus at the start: performance, reliability, and well-crafted experiences. Since then, the team has been deeply focused on these priorities. Many of these improvements have been rolling out to Windows Insiders over the last few months, and they'll start rolling out more broadly across Windows 11 PCs beginning this fall. Here's what our work so far looks like

• Earlier this month, we began previewing improvements to Windows Search Box, including a calmer home screen, clearer results, removing promotional content from web results and more.
• At Build 2026 in June, we introduced a number of improvements to the developer experience on Windows including a developer-optimized Windows 11 experience to build and ship faster, announcing and later delivering a public preview of WSL containers, Windows 365 with developer configuration, Microsoft Execution Containers and much more.
• We've strengthened the fundamentals of WinUI 3 and extended it into more of the Windows shell, including Widgets and the new Run experience, with Autoplay dialog and more File/Folder Properties dialogs coming soon to Windows Insider Preview Experimental builds. And with substantial improvements in memory efficiency and latency, these investments are strengthening the platform foundation needed to accelerate the modernization of Windows 11 and the broader application ecosystem.
• In May, we began previewing changes to Taskbar and Start, which included the ability to move your taskbar positions as well as provide more personalization of Start.
• In May, we shared updates on how we've been simplifying AI throughout the OS, starting with inbox apps, part of a broader shift to make AI in Windows more intentional and focused on the experiences that provide the most value to customers.
• We have previewed several improvements to File Explorer, including foundational architecture enhancements designed to improve responsiveness and reliability across launch and navigation. We’ve addressed long-standing feedback about Home, including unstable transitions and blurry thumbnails. We also made updates to address File Explorer reliability, readability, and usability across the Address Bar, file size formatting, keyboard navigation, and renaming, and there’s more to come soon.
• In May, we previewed updates to the widgets and feed experience, giving you more control over and making them quieter by default.
• In May, we introduced the Driver Quality Initiative (DQI), a comprehensive, ecosystem-wide effort designed to fundamentally raise the bar on driver quality, reliability, and security across Windows. Since March, we've improved reliability across some of Windows' most common connectivity experiences, including improved USB4 docking performance, improved compatibility with Bluetooth devices like AirPods, as well as major gains in printer connectivity, including reducing in-network printer discovery failures.
• We're continuing to invest across the full stack, from the kernel and shell to the apps and developer tools built on Windows, so performance improvements benefit the broad range of ways people use Windows. Building on the responsiveness and scheduler work we described in May, application launches and experiences like Start, File Explorer, Search, and Snipping Tool are faster and more responsive. Our focus has been on improving these experiences, so they are responsive, free of stutters and delays, and customers enjoy a reliable experience every time. Boot and logon times are also improved. Additionally, developers benefit from faster compile times, streamlining enterprise workflows.
• Alongside all of these areas, we’ve steadily been introducing several improvements to the memory efficiency of Windows, from taking advantage of a more efficient memory allocator to reduce overhead across apps and components, continued tuning of WinUI 3 so that apps built on it use less memory by design, as well as driving efficiencies across Chromium and Webview2 components when they appear in the operating system.
• Throughout this effort, we've improved Windows Hello to make signing in with your face or fingerprint more reliable, helping you get to your desktop faster. It's part of our broader focus on the everyday experiences that should just work, making Windows feel more polished, dependable, and consistent every day.
• In April, we began previewing changes that reduced disruption from Windows Updates and provided more control like the ability to skip updates during the out-of-box experience (OOBE), extending update pauses and more.
• In April, we made changes to the Windows Insider Program to become simpler and easier to navigate, with fewer channels and more control over the features you flight.

What happens between now and the end of the year Across our focus areas, the work continues as we bring these enhancements to general availability and deliver ongoing improvements customers can feel across performance, reliability, and craft. We're going to take everything we've learned since March and keep listening and closing the loop on your feedback. The signal from you is clear: keep going. We intend to. We're staying focused on our initial areas, and we're expanding into four new ones.

• Onboarding and setup. Delivering a faster and more efficient out-of-box experience.
• Memory optimization for 8GB and above. Reducing Windows memory footprint to deliver a fast and responsive Windows experience across the PCs customers use every day.
• Family. Providing a faster set up and making it easier for families to access useful parental controls.
• Voice. Making voice more natural and fluid to interact across the apps you use every day.

What's energized us most The last few months have energized us. Meeting Windows Insiders at our monthly meetups and hearing what you think has been one of the best parts. This is work our engineers love and we want you to feel it in the product. We know we have more to do, and we're grateful to be on this journey with you. Pavan

Hello Windows Insiders, We have new releases today with builds across Beta and Experimental, including refreshed security certificates across all new builds. Renewed Windows Insider flight certificates All builds this week contain renewed Windows Insider flight certificates (Note: Experimental (Future Platforms) has already contained the renewed flight certificate since the build released earlier this week). Windows Insider Preview builds use flight certificates that are renewed periodically to help ensure Insider devices remain on supported builds and continue receiving future Insider Preview updates. The current flight certificate expires on August 11, 2026, so please update your device to a build containing the renewed flight certificate before that date. For more information, please visit the certificate renewal FAQ. New builds this week Today we are releasing new Windows 11 Insider Preview Builds. See your channel release notes here:

• Beta: Build 26220.9022
• Experimental: Build 26300.9032

For those on other specific build versions, here are today’s new builds and release notes:

• Beta (26H1): Build 28020.2623
• Experimental (26H1): Build 28120.2630
• Experimental (Future Platforms): Build 29639.1000

Notable new features:

[Updated 4 August 2026: thank you for the feedback from Insiders who found that the taskbar improvements had not made their way to the latest Beta build on release. After a slight delay, those improvements are now included in the build, a reboot maybe required. We look forward to continuing receiving your feedback for the new Taskbar improvements.]

[Taskbar]

Release channel: Experimental, new to Beta and Beta (26H1) Alternate Taskbar Position

• You can now change the position of taskbar on your screen. In Settings > Personalization > Taskbar > Taskbar Behaviors, you can select the side of the screen you want your taskbar on: bottom, top, left, or right. In these other positions, tooltips, flyouts, and animations will still come from the taskbar, and most customization settings like never combine taskbar icons will work with all locations.

• Support for touch gestures, Search box, and Ask Copilot in alternate locations is in progress. Auto-hidden taskbar and touch optimized taskbar are not currently supported. Smaller taskbar is currently supported only for top and bottom positions.

[caption id="attachment_178963" align="aligncenter" width="1024"] Screenshot of the taskbar in the left-aligned position.[/caption] Smaller Taskbar

• We’re introducing a smaller taskbar for users who want to maximize screen space, especially on smaller devices. While the default taskbar remains unchanged, this setting provides a more compact experience with smaller icons and a reduced taskbar height, giving you more room for your apps. Core elements like Start, Search, and the system tray scale appropriately to stay aligned and consistent.

• To change your taskbar size, go to Settings > Personalization > Taskbar > Taskbar behaviors > Taskbar size. When set to Small, both the icons and the taskbar height become smaller.

[caption id="attachment_178959" align="aligncenter" width="1024"] Side-by-side comparison of the standard and smaller taskbar heights on the same device and resolution, showing the additional screen space gained.[/caption]

[Adaptive Hibernate Policy]

Release channel: Experimental Updates to the adaptive hibernate policy to increase instances of instant-on resumes from Modern Standby and increased battery preservation at the low end of the battery.  Noticeable changes include less hibernation while the battery is above 80% and hibernating sooner when the battery is below 10%. Thanks, Stephen and the Windows Insider Program team