Tiny11 Builder Redesigned With WinUI 3 to Simplify Windows 11 De-Bloating

The redesign was reported by TechRadar on Oct. 15, 2026, which noted that The Register spotted the release. According to the report, the previous Builder relied on a cruder setup process built around PowerShell scripts. The new Builder presents users with a modern Windows 11 application, and screenshots show a more polished interface than before.

The developer says the new Builder is 'massively more reliable, with features like auto-resume, custom configurations (!) and leveraging the full power of modern PCs in order to speed up the process.' That means creating a slimmed-down Windows 11 image is less intimidating for users who are not deeply technical, whether they are making a custom build or simply using the standard Tiny11 configuration.

Tiny11 Builder is designed to remove unwanted components from Windows 11. The standard Tiny11 build strips out a range of Microsoft apps and other bloat while keeping core parts of the operating system, including Windows Update and Microsoft Defender, the built-in antivirus.

There are caveats. A custom installation of Windows 11 is not officially supported by Microsoft. The default Tiny11 configuration is quite aggressive in what it removes, so users may find that features they rely on are no longer present. The report advises users to steer clear of the 'Core' version of Tiny11, which removes feature updates, though not security patches, and Microsoft's recovery environment for a super-light install. Even the developer recommends that the Core install is for testing in virtual machines only.

A Tiny11 installation still requires a valid Windows license. The app can be used to install Windows 11 on an older PC that does not meet the official system requirements, but the developer does not guarantee that this will work flawlessly, noting that 'local-account and hardware-check settings are best effort, not guaranteed bypasses on new builds.' The tool can also be used to install Windows 11 with a local account, something Microsoft is still working to prevent, at least in theory, but again the bypass is not guaranteed.

As with any third-party software, users of Tiny11 do so at their own risk, according to the report.