Microsoft released Windows 11 Insider Builds 26220.8165 and 26300.8170 on April 10, 2026, delivering two significant under-the-hood improvements that address long-standing user limitations. These builds, part of the Canary and Dev channels respectively, introduce support for FAT32 volumes up to 2TB and add Secure Boot status badges to the Settings app. While lacking flashy UI changes, these updates solve practical problems that have frustrated Windows users for years.

FAT32 Formatting Limit Increased to 2TB

The most substantial change in these builds is the removal of the 32GB formatting limit for FAT32 volumes. For decades, Windows has artificially restricted FAT32 formatting to 32GB through the built-in formatting tools, forcing users to rely on third-party utilities or alternative file systems for larger removable drives. This limitation has persisted despite the FAT32 specification technically supporting volumes up to 2TB with 512-byte sectors or 16TB with 64KB clusters.

Microsoft's implementation now allows users to format FAT32 volumes up to 2TB directly through Windows Explorer or Disk Management. This change addresses a significant compatibility gap, as many consumer devices—including media players, gaming consoles, and automotive entertainment systems—still rely on FAT32 for cross-platform compatibility. The 32GB restriction has been a particular pain point for users transferring large files between Windows systems and legacy devices that don't support modern file systems like exFAT or NTFS.

Technical documentation confirms the update applies specifically to formatting operations within Windows. Existing FAT32 volumes larger than 32GB created with third-party tools will now be properly recognized and supported by Windows without requiring workarounds. The change appears in both Canary Channel Build 26220.8165 and Dev Channel Build 26300.8170, suggesting it will reach general Windows 11 users in a future stable release.

Secure Boot Status Badges in Settings

The second major addition brings Secure Boot visibility directly to the Settings interface. Windows 11 now displays a badge indicating whether Secure Boot is enabled, disabled, or not supported on the system. This information appears in Settings > System > About, providing immediate visibility into this critical security feature without requiring users to navigate through multiple menus or use command-line tools.

Secure Boot has been a requirement for Windows 11 since its initial release, but verifying its status has required accessing the UEFI firmware settings or using PowerShell commands like Confirm-SecureBootUEFI. The new badges offer at-a-glance confirmation that this foundational security layer is active and functioning correctly. For systems where Secure Boot isn't supported, the badge will clearly indicate this limitation, helping users understand potential security implications.

This visual indicator represents Microsoft's continued emphasis on making security features more transparent and accessible to average users. By surfacing Secure Boot status in the primary Settings interface, Microsoft reduces the technical knowledge required to verify this critical system security setting. The implementation follows Microsoft's pattern of gradually improving security visibility throughout the Windows interface.

Build-Specific Details and Fixes

Build 26220.8165 for the Canary Channel includes several specific fixes alongside the FAT32 and Secure Boot changes. Microsoft addressed an issue where the Windows Subsystem for Linux (WSL) could fail to start after resuming from hibernation. The build also resolves problems with certain USB audio devices disconnecting unexpectedly and improves reliability for systems using virtualization-based security features.

Build 26300.8170 for the Dev Channel contains identical core functionality but targets a different development branch. Microsoft typically uses the Canary Channel for the most experimental changes and the Dev Channel for features closer to public release. The appearance of both FAT32 expansion and Secure Boot badges in both channels suggests these features have progressed beyond initial testing phases.

Both builds continue Microsoft's recent pattern of focusing on system reliability and compatibility improvements rather than major user interface changes. This approach reflects feedback from Insider testers who have consistently prioritized stability and functional improvements over cosmetic updates in recent development cycles.

Practical Implications for Users

The FAT32 expansion solves a real-world compatibility problem that has existed since Windows XP. Users who need to format large external drives for use with devices that only support FAT32—such as certain smart TVs, car stereos, or older gaming systems—can now do so directly within Windows without downloading third-party software. This eliminates security concerns associated with unofficial formatting tools and simplifies what was previously a multi-step process.

For IT administrators, the Secure Boot badges provide immediate visibility into system security compliance across managed devices. Organizations requiring Secure Boot for compliance standards can now verify status more efficiently during audits or troubleshooting sessions. The visual indicator may also help identify systems where Secure Boot has been accidentally disabled or where hardware doesn't support the feature.

These updates demonstrate Microsoft's continued attention to legacy compatibility while advancing modern security practices. The FAT32 improvement acknowledges that many users still interact with devices and systems that haven't adopted newer file systems, while the Secure Boot badges reinforce Windows 11's security-first design philosophy.

Development Context and Future Direction

These builds arrive as Microsoft continues refining Windows 11's core functionality ahead of expected future updates. The focus on file system improvements and security visibility suggests Microsoft is addressing technical debt and user feedback accumulated since Windows 11's initial release. The FAT32 change, in particular, responds to years of user requests for native support beyond the artificial 32GB limit.

The dual-channel release strategy—with identical features appearing in both Canary and Dev builds—indicates these changes have passed initial testing and are progressing toward general availability. Microsoft typically staggers feature deployment across Insider channels to gather feedback at different development stages before public release.

Looking forward, these improvements may signal broader changes to Windows' file system handling and security interface. Microsoft could expand FAT32 support further or introduce additional visual indicators for other security features like Windows Defender Application Guard or memory integrity. The company's pattern suggests incremental improvements to these areas will continue appearing in future Insider builds.

For Windows users, these updates represent meaningful quality-of-life improvements rather than revolutionary changes. The FAT32 expansion removes an arbitrary limitation that has frustrated users for over two decades, while the Secure Boot badges make critical security information more accessible. Both changes reflect Microsoft's ongoing effort to balance backward compatibility with modern security requirements—a challenging but necessary balance for an operating system used by over a billion devices worldwide.

As these features progress through Insider testing, users should monitor for any compatibility issues with specific hardware configurations or software that interacts with FAT32 volumes or Secure Boot settings. Microsoft will likely refine both features based on Insider feedback before including them in a future Windows 11 feature update for all users.