New Windows 11 Dev Build Improves Secure Boot Monitoring and Storage Controls

Microsoft released Windows 11 Insider Preview Build 26300.8170 to the Dev Channel, adding a revamped Secure Boot status view in Windows Security with color-coded badges, increasing the FAT32 CLI formatting limit from 32GB to 2TB, improving storage performance and UAC behavior in Settings, fixing a data-usage display bug, and updating the Feedback Hub UI and behavior. The build is distributed via controlled feature rollout and is intended for Dev Channel Insiders; the Secure Boot view is disabled by default on enterprise-managed devices to avoid disruption.