"Windows 11 Sanlex" refers to a modified, "lite" version of Windows 11 created by a developer named Sanlex. These custom editions are designed to be highly optimized, removing telemetry, "bloatware," and unnecessary background services to improve performance on older or less powerful hardware.
These builds often rely on third-party activation scripts, which may violate Microsoft's licensing terms. windows 11 sanlex link
If you are looking for official or reliable sources for Windows 11 installation, prioritize these official Microsoft channels: "Windows 11 Sanlex" refers to a modified, "lite"