Searching for that ISO is an act of digital archaeology. You are trying to excavate a world before the "As a Service" model. A world where an operating system was a product you bought, not a surveillance subscription you endure.
We download it to mourn it.
You are searching for a ghost.
So, go ahead. Find that ISO. Hash-check it against the official MSDN SHA-1 values. Install it in a virtual machine. Let the Aero Glass shine for a moment. windows 7 iso download 64 bits
And then you will try to open a modern website. Searching for that ISO is an act of digital archaeology