Windows 10 version 1507 (Build 10240) is the original "Threshold 1" release of Windows 10, launched on July 29, 2015. It was the first version to replace Windows 8.1 and introduced the core modern UI and Start menu features we see today. 2. The "Extra Quality" Tag

Core Pro Features:

Includes advanced tools like BitLocker encryption, Hyper-V virtualization, and Domain Join capabilities.

Downloads labeled with buzzwords like "extra quality" or "high performance" from non-official sites are frequently bundled with malware or spyware. Microsoft Support Download Windows 10 Disc Image (ISO File) - Microsoft