Winntsetup Github [better] Jun 2026

WinNTSetup is a Windows installer utility that allows advanced users to deploy and customize Windows installations from existing setup files or ISO images. It provides features beyond the standard Windows Setup GUI, including advanced tweaks, automated unattended installations, driver integration, registry modifications, and support for multiple Windows versions (Windows XP through Windows 11/Server editions depending on build compatibility). The project is distributed on GitHub where source code, releases, issues, and documentation are hosted.

WinNTSetup requires you to specify where the bootloader goes and where the actual operating system files go. winntsetup github