We tested a well-known ultralight portable build (version 19045.5198 Pro) on three machines:
Since "Ultralight" and "Portable" are modifications made by the community (not an official Microsoft release), this feature outlines the characteristics, technical composition, and use cases for this specific custom ISO build. windows 10 22h2 190455198 pro ultralight portable
Removing Windows Defender, firewall, UAC, and system file integrity checks leaves your system completely exposed. You’re one malicious USB driver away from disaster. Worse, many of these custom ISOs come pre-infected — builders add backdoors, cryptominers, or telemetry to their servers. We tested a well-known ultralight portable build (version
| Component | Status | |-----------|--------| | Windows Recovery Environment (WinRE) | Removed (saves ~500MB) | | WinSxS backup & cache | Stripped (can’t uninstall updates) | | Windows Store & UWP apps | Fully removed | | Cortana & Voice Recognition | Removed | | Edge Browser (or replaced) | Removed | | Telemetry & DiagTrack | Disabled via registry & services | | Windows Update service | Disabled (manual only) | | Printer drivers (except generic) | Removed | | Windows Search indexer | Removed (use Everything.exe) | | OneDrive installer | Removed | | Sample media & wallpapers | Removed | Worse, many of these custom ISOs come pre-infected
: While a standard Windows 10 install can take up over 30GB, these "ultralight" versions can often occupy as little as 2.5GB to 8GB of disk space.