Phoenix Liteos 11 Pro (22621.457) May 2026

Phoenix LiteOS 11 Pro (Build 22621.457) is a custom, "debloated" version of Windows 11 designed by developer FBConan to maximize performance and minimize resource usage on older or low-end hardware.

: Built on Windows 11 Build 22621.457 , which was an early release of the 22H2 update featuring improved system resource history and enhanced security. Phoenix LiteOS 11 Pro (22621.457)

: Restart your PC and enter BIOS. Ensure "Secure Boot" is disabled, as custom ISOs often lack the digital signatures required for it. Phoenix LiteOS 11 Pro (Build 22621