Why go through this trouble? Because real-world legacy demands persist.
CNC machines, MRI controllers, and lab equipment often have drivers that only run on Windows 7. A Windows 7 OVA allows you to pass through USB-to-serial adapters and parallel ports to the VM.
The following updates and tools are pre-installed: windows 7 ova file
Note: This OVA is not intended for production use. Windows 7 is end-of-life (EOL) and contains known unpatched vulnerabilities if connected to the internet.
Install Windows 7:
Post-Installation Setup (Crucial):
Export to OVA:
You now have a portable, clean Windows 7 OVA file that you can import on other computers.