Use dism (Deployment Imaging Service and Management) to export each edition from official ISOs.

\sources\ ├── install.wim (or install.esd) ├── boot.wim ├── setup.exe └── ...

Before you download any Win 7 AIO ISO, you need to understand the risks.

Q: Is Windows 7 AIO free to use? A: Windows 7 AIO is not free to use. You need to have a valid activation key or purchase a license.