This build did not follow the standard Insider Preview release schedule. While the previous build was released to Windows Insiders, Build 15035 was not officially distributed by Microsoft. Instead, the build was privately circulated until it was eventually uploaded to the BetaArchive FTP server on November 24, 2019. Because it was designed to run on the same hardware architecture as the defunct Windows RT and Windows 10 Mobile, the enthusiast community quickly realized its potential as an unofficial upgrade path for abandoned devices.
When Microsoft released the original Surface RT tablets running Windows RT, it promised long-term support. However, by January 2015, the tech giant officially abandoned the ARMv7 architecture for consumer PCs, opting not to release a commercial version of Windows 10 for these devices.
This is the headline act. The Media Builder could take the x86 (32-bit) version of build 15035 and, using a proprietary repackaging routine, reconstruct it into a bootable ARM32 image. This wasn't emulation—it was native execution. Suddenly, the build could run on early Qualcomm Snapdragon 835 laptops (like the HP Envy x3) and, more famously, on the .
Blog post on the Surface RT. Linux on Surface RT - Make the Kernel bootMickaël Walter. Blog website - written by Mickael Walter (@ GitBook Windows 10 build 15035 - BetaWiki windows 10 build 15035 media builder
Microsoft has provided some workarounds for the known issues:
The is a community-developed tool used to deploy a leaked, prerelease version of Windows 10 onto ARM32 (ARMv7) devices, most notably the original Microsoft Surface RT and Surface 2 .
: It automates the formatting and file-copying process for USB installation drives. Key Features of Build 15035 for ARM32 This build did not follow the standard Insider
At the time of release, this build was the talk of the town for one specific reason:
Currently used by the "Windows on ARM32" community as an unofficial upgrade path for Surface RT and Surface 2 tablets. The Windows Media Builder Tool
Using the Media Builder is a straightforward process. Here's a step-by-step guide: Because it was designed to run on the
Because Microsoft never officially finished or packaged this operating system for standard consumers, deploying it requires a complex array of jailbreaks, Secure Boot patches, and specific image deployment tools. The simplifies this highly technical process into an automated, command-line execution wizard. Key Features of the Media Builder
The primary use case for this build is reviving hardware that Microsoft officially abandoned, specifically .