That's an intriguing request—"Windows 10 version 2015 ISO" paired with "interesting story." Let me clarify what likely happened here, because isn't a standard official name, but you're pointing to a very specific piece of computing history.
: Developers often use this version to test software compatibility across the entire Windows 10 lifecycle. How to Download the Windows 10 2015 ISO windows 10 version 2015 iso
Standard support for the 2015 version (1507) ended years ago. Even the broader support for all Windows 10 versions reached its final milestone on October 14, 2025 . That's an intriguing request—"Windows 10 version 2015 ISO"
Ironically, if you enable Windows Update, the system will try—and often fail—to upgrade to a newer version (e.g., 1511 or 1607), leading to endless reboots or bricked installations. because isn't a standard official name