Microsoft quietly released Windows 11 Experimental build 26300.8553 to Windows Insiders on May 29, 2026, introducing a pair of long-requested Start menu personalization features: new size controls and section-level visibility toggles. The build, seeded to a subset of Dev Channel testers, signals a renewed focus on giving users finer command over the Start menu’s layout—an area that has drawn steady criticism since the operating system’s launch.

What's New in Build 26300.8553

The build’s release notes, though sparse, highlight two headlining changes. Size controls allow users to adjust the Start menu’s overall dimensions directly from a new “Size & Layout” submenu. Rather than being locked to a fixed grid, early screenshots shared by Insiders show options for “Compact,” “Default,” and “Expanded” widths, with a fourth “Full” option that stretches the menu across nearly the entire desktop width. The height also scales dynamically, accommodating more pinned app icons or recommendations without spawning scrollbars in the expanded views.

Section-level visibility takes customization a step further. Users can now independently show or hide the “Pinned” and “Recommended” sections, a capability that many had jury-rigged using registry hacks or third-party tools like StartAllBack. The settings appear in Personalization → Start, with simple toggle switches. Toggling off a section reclaims that space entirely, potentially allowing the Start menu to shrink significantly if both sections are hidden—though in that scenario the menu defaults to a minimal panel containing only the user profile icon and power button.

These additions are delivered via a controlled feature rollout, meaning not every Insider on build 26300.8553 will see them immediately. Microsoft often uses such A/B testing to gauge performance and usability before broader deployment.

The Long Road to a Customizable Start Menu

When Windows 11 debuted in 2021, its Start menu was a radical departure: Live Tiles were gone, replaced by a static grid of icons and a “Recommended” section that many found invasive. User feedback was swift and loud. Forums and feedback hubs overflowed with pleas for the ability to resize the menu, remove recommendations, or restore a Windows 10-style full-screen launcher.

Microsoft initially resisted, arguing that the simplified design reduced clutter and improved task-oriented workflows. But over subsequent updates, the company inched toward compromise. In 2022, it added app folder support for pinned items. Early 2023 brought a limited ability to show more pins or more recommendations. Later that year, the company introduced a third “Compact” view that squeezed the menu down to a single column of icons. Each iteration felt like a half-measure, however, and power users continued to hunger for true granular control.

Build 26300.8553 represents the most direct response yet to those demands. By making size and section visibility first-class settings, Microsoft is finally acknowledging that a one-size-fits-all launcher doesn’t fit everyone—especially on devices ranging from compact tablets to 4K desktop monitors.

How Experimental Builds Fit into the Insider Program

For context, Windows 11 Insider builds are released through four channels: Canary (the bleeding edge, with the highest risk of instability), Dev (new features that may or may not ship), Beta (more polished builds tied to upcoming feature updates), and Release Preview (final testing before general availability).

Build 26300.8553 is labeled “Experimental,” a designation Microsoft uses sparingly within the Dev Channel. Experimental builds often contain features that are still under heavy evaluation and may be significantly altered or scrapped entirely based on Insider telemetry and feedback. The fact that these Start menu controls appear in an Experimental build suggests Microsoft is still gathering data on how users interact with multiple sizes and section toggles, and whether the implementation feels natural or introduces UI bugs.

Insiders who opt into receiving Experimental builds know the risks: crashes, missing translations, and features that disappear abruptly in the next flight are all par for the course. That said, the community response to this particular build has been cautiously optimistic. On the Windows Insider subreddit and various tech forums, testers praised the flexibility while noting a few rough edges—such as the “Full” width setting occasionally overlapping the taskbar on ultrawide monitors, and the hidden-sections state forgetting its configuration after a reboot for some users.

What These Changes Mean for Everyday Users

For the average Windows user, the Start menu is a launchpad, a search interface, and often a digital junk drawer. Being able to tailor its size and content visibility can reduce cognitive load significantly. A user who relies on desktop shortcuts might hide both sections and reclaim screen real estate entirely, invoking the menu only for search. A tablet user might switch to the “Expanded” view for larger touch targets. And a professional who wants to eliminate distractions might keep only Pinned apps visible, ensuring Recommended files never peek through during presentations.

Administrators and IT managers may also welcome section-level visibility for enterprise deployments. Using Group Policy or MDM, they could enforce a configuration that hides recommendations network-wide, addressing privacy and compliance concerns that have dogged the feature since launch. Microsoft hasn’t confirmed whether these new controls will surface in policy settings, but the pattern of past personalization features suggests it’s likely.

The Competition’s Influence

Microsoft’s move doesn’t happen in a vacuum. Apple’s macOS has long offered a customizable Dock and a Launchpad that can be resized and arranged freely. Linux desktop environments like KDE Plasma and GNOME (with extensions) provide near-infinite Start-menu flexibility. Even ChromeOS now allows users to adjust the launcher’s size and content. The pressure to close the customization gap has only grown as more users split their time across multiple operating systems.

By adding these controls, Windows 11 becomes more accommodating without abandoning its core design language. It’s a pragmatic evolution rather than a revolution—but one that could win back some of the enthusiasts who defected to third-party shells in frustration.

What’s Next and When Will It Ship?

As an Experimental feature, there is no guarantee that size controls and section visibility will land in the next major Windows 11 feature update (often rumored under the “24H2” or “25H2” monikers, though Microsoft has moved away from strict biannual naming). Typically, features that receive positive feedback during Experimental and Dev Channel testing graduate to Beta within two to three months, then migrate to Release Preview and finally to stable within another two to four months. That puts a potential general release window somewhere between late 2026 and early 2027—if all goes smoothly.

But Microsoft has a history of delaying or reworking Start menu features. The “Compact” mode, for instance, spent over a year in Dev builds before reaching the public. Similarly, the ability to show more pins took multiple iterations to get right. So patience is warranted.

For Insiders eager to test the new controls, the path is clear: check your Windows Update settings in the Dev Channel and enable “Get the latest updates as soon as they’re available” to increase your chances of receiving the Experimental build. Keep in mind that rolling back is possible only within the 10-day window, so backups are your friend.

The Bigger Picture

Build 26300.8553’s Start menu tweaks are a small piece of a much larger puzzle. Microsoft is simultaneously working on a floating widgets panel, a revamped system tray, and deeper AI integration across the shell. The Start menu remains, however, the emotional heart of the Windows experience—its customization options carry outsized weight in user satisfaction surveys.

By finally giving users the handles to reshape this core UI element, Microsoft is signaling that listening to feedback isn’t just a platitude. The road from the rigid 2021 launcher to today’s malleable menu has been long, but the destination is starting to look like what users asked for all along.