Everything You Need to Know About Downloading Windows 10 Pro 64-Bit ISO from Microsoft
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To install Windows 10 Pro, restart your computer with the bootable USB inserted and enter the BIOS or Boot Menu (usually by pressing F12, F2, or Del during startup). Select the USB drive as the primary boot device. During setup, you will be asked for a product key. If you enter a Windows 10 Pro key, the installer will automatically select the Pro edition. If you don't have a key yet, you can skip this step, but you will have limited access to customization features until the OS is activated.
Choose a location on your local storage (such as your Desktop) to save the file. Name the file (e.g., Windows10_Pro_x64.iso ) and click .
Choose Architecture and EditionUncheck the "Use the recommended options for this PC" box if you are downloading for a different machine. Ensure the Edition is set to Windows 10 and the Architecture is set to 64-bit (x64). Note that the Pro version is bundled within the standard Windows 10 ISO; you will select "Pro" during the actual installation process.