Phoenix Liteos 11 Ultralight Ultimate -fbconan-.iso < 2026 Update >
Insert the USB into the target machine, restart, and select the USB from the boot menu.
This build takes the "Lite" concept to its logical conclusion. Here are its key characteristics:
When evaluating custom operating system builds, the primary metric of success is the overall resource footprint. FBConan's ultralight configuration dramatically reduces system overhead right out of the box: Metric / Requirement Stock Windows 11 Pro Phoenix LiteOS 11 Ultralight Ultimate ~5.5 GB to 6.0 GB ~1.6 GB Disk Space (Installed) ~20 GB to 30 GB ~4.0 GB to 6.0 GB Idle RAM Usage 2.5 GB – 3.5 GB 400 MB – 700 MB TPM 2.0 / Secure Boot Strictly Required Bypassed Entirely Background Processes 150+ Processes 40 – 50 Processes Core Performance Features 1. Stripped Bloatware and Telemetry Phoenix LiteOS 11 Ultralight Ultimate -FBConan-.iso
Select the downloaded ISO file, choose partition scheme (or MBR for very old systems), and click Start to burn the image.
It's not all about what's missing. FBConan adds several features to make the OS feel modern and user-friendly: Insert the USB into the target machine, restart,
Will this computer be used for ?
Significant reduction in installation size (reported as low as 2GB installed) and idle RAM usage (around 700MB). FBConan adds several features to make the OS
Download the official from a trusted tech forum or the developer's official release channels. Insert your USB drive and open Rufus .
Features "God Mode" and simplified command prompt access for easier system management. Technical Specifications RAM Usage ~700MB at idle (highly dependent on specific hardware) Disk Space ~2GB to 8GB depending on version and updates Updates
While Microsoft enforces strict TPM 2.0, Secure Boot, and RAM limitations for retail versions of Windows 11, custom ISOs like bypass these hardware checks entirely. This guide explores the architecture, core features, performance advantages, and safety considerations of installing FBConan's ultralight operating system. Key Technical Specifications
