Windows 7 "Razer Edition" is a popular example of a —a modified version of the original operating system tweaked by enthusiasts to include specific themes, removed services, and pre-installed drivers.
The Razer Edition of Windows 7 is a customized version of the operating system, optimized for gaming performance. It's not an official Microsoft release, but rather a third-party modification. windows 7 razer edition 64 bit iso
You're looking for a specific Windows 7 ISO file. Here's what I found: Windows 7 "Razer Edition" is a popular example