Use Windows ADK – it’s official, safe, and also gives you other useful tools like dism and imagex .
oscdimg -n -m -b<boot_file> <source_folder> <output.iso> Example for a bootable Windows PE ISO: download oscdimg.exe
oscdimg -n -m -b"winpe\efisys.bin" "C:\ISO_source" "C:\output.iso" | Method | Ease | Recommended | |--------|------|--------------| | Windows ADK (Deployment Tools) | Medium | ✅ Yes | | Standalone .exe from 3rd party | Easy | ⚠️ Only with verification | | Old Windows AIK/OPK | Hard | ❌ No | Use Windows ADK – it’s official, safe, and