It’s important to clarify right at the start: there is only one truly "solid" and safe way to get a Windows 10 Pro 64-bit ISO, and that is directly from
For a Windows 10 Pro ISO download, 64-bit, direct links are often sought after for clean installations or upgrades. However, Microsoft's official policy recommends using their official tools for downloading Windows. Here's how you can get Windows 10 Pro ISO directly from Microsoft or through other official means: windows 10 pro iso download 64-bit direct link
Instead of "Upgrade this PC," choose "Create installation media (USB flash drive, DVD, or ISO file) for another PC." It’s important to clarify right at the start:
Some known sites include: