dism /Export-Image /SourceImageFile:install.wim /SourceIndex:1 /DestinationImageFile:install.esd /Compress:recovery Then replace install.wim with install.esd inside the ISO (using tools like oscdimg ).
Tool: Compact.exe or CompactGUI
~3.8 GB (down from 5.5 GB)
| Format | Size (approx) | Deployment Speed | |--------|--------------|------------------| | ISO (WIM inside) | ~5.5 GB | Fast | | ESD | | Very slow | windows 10 iso compressed