Chris Titus Utility.
Technically, this isn't an ISO customizer, but it’s the best alternative for people who find NTLite too risky. Instead of modifying the ISO before installation, you run this script on a fresh install of Windows. ntlite alternative
It can automatically bypass TPM 2.0, Secure Boot, and 4GB RAM requirements. It can also disable data collection and skip the requirement for a Microsoft Account. Chris Titus Utility
It is completely free and incredibly powerful. It allows you to remove deeply integrated components like Microsoft Edge, Cortana, and Windows Defender. Chris Titus Utility. Technically
People who want a "lean" Windows experience without the hassle of rebuilding ISO files. Cost: Free / Open Source. 5. NTLite "Free Edition" vs. Alternatives