Windows 10 Build 15035 Media Builder Install Jun 2026

, an unofficial, leaked build frequently used by enthusiasts to upgrade legacy Surface RT devices from Windows RT 8.1. Overview of Build 15035

A USB 3.0 flash drive with at least 8 GB of storage.

: Installing this build requires bypassing the device's locked bootloader. The Media Builder relies on a custom recovery environment to implement a Secure Boot patch. windows 10 build 15035 media builder install

Here are a few additional tips and tricks to keep in mind when installing Windows 10 build 15035 using the Media Builder tool:

: Download the unofficial (often found in communities like Open Surface RT or i12bretro ). , an unofficial, leaked build frequently used by

This is an "expired" Insider build (Timebomb: May 31, 2017). Users often report a watermark on the desktop and may encounter issues with built-in security tools like Windows Defender due to expired certificates. The "Media Builder" Tool

Are you looking to install Office or other apps ? I can help troubleshoot the process. AI responses may include mistakes. Learn more The Media Builder relies on a custom recovery

Originally leaked from an internal Microsoft security breach in 2017, Build 15035 remains the only known functional variant of a full Windows 10 desktop client compiled for ARM32 architecture. Because Microsoft abandoned these devices on Windows RT 8.1, utilizing the automated script in the XDA Developers Windows 10 Media Builder project is required to bundle the necessary Secure Boot bypasses, drivers, and modified setup files into a bootable USB drive. What is Windows 10 Build 15035?

Build 15035’s Media Builder supports silent switches: