Windows 10 Build 15035 Media Builder Install May 2026

Windows 10 Build 15035 is ARM32 (ARMv7) development build of the Creators Update that is primarily used as an unofficial upgrade for older Windows RT

2. What You Need Before Starting

• Hardware: A supported ARM device (Lumia 950/XL, Raspberry Pi 3/4 with UEFI, or an early Snapdragon 835 PC like the HP Envy x3).
• Build Files: The leaked 15035.0.170217-1034.rs2_release_arm64fre_client-pro-core_retail_en-us (or similar named folder).
• Media Builder Tool: ffu-creation-tool, IUTool, or a custom ffu2img converter (for SD card flashing).
• PC with Windows 10/11 (x64): To run the media builder and flash tools.
• SD Card (16GB+) if using Raspberry Pi or non-Lumia device.

Use a tool like Rufus or manual diskpart commands to make it bootable. windows 10 build 15035 media builder install

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Explore unique features:

To install Windows 10 Build 15035 using the Media Creation Tool, users would first download the MCT from Microsoft's official website. After launching the tool, users select the option to create installation media for another PC, choose the language, edition, and architecture (32-bit or 64-bit) of Windows 10 they wish to install, and then opt for the USB drive or ISO file creation. For Build 15035, users would need to ensure they're selecting the appropriate build version available through the MCT, which might involve selecting the "Windows 10 Insider Preview" option if available. Windows 10 Build 15035 is ARM32 (ARMv7) development

7.2 Stability Notes

• The Media Builder tool itself is beta – expect UI freezes.
• Always create a restore point or VM snapshot before using advanced features.