Windows PE (WinPE) boot files, specifically for the x86 (32-bit)
architecture, are no longer included in the latest versions of the Windows Assessment and Deployment Kit (ADK) for Windows 11. Microsoft Learn If you are encountering errors like
"Setup cannot locate Windows PE Boot Files (OnecoreUAP)-x86_en-us.msi"
, it is usually because the installer is trying to find 32-bit components that Microsoft has officially deprecated for newer kits. Microsoft Learn Understanding the Component OnecoreUAP (x86):
This refers to the core architecture files for the 32-bit version of the Universal Windows Platform (UWP) environment within WinPE. MSI Payload: file is the individual installer package that the main adkwinpesetup.exe attempts to call during installation. Microsoft Learn How to Download x86 Boot Files
Because 32-bit WinPE is no longer supported in ADK for Windows 11 or Windows Server 2022, you must use an older version of the kit to obtain these files: Microsoft Learn Download the Correct Version: The last version to include 32-bit (x86) WinPE files is the ADK for Windows 10, version 2004 Official Source: You can find these on the official Microsoft ADK download page Standalone Installation:
Install the ADK for Windows 10 (2004) first, selecting at least the Deployment Tools Download and run the matching Windows PE add-on for version 2004 to get the x86 boot files. Microsoft Learn Workaround for Modern Kits (Windows 11/MDT)
If you are using the Microsoft Deployment Toolkit (MDT) with the Windows 11 ADK, you may still need x86 files for the Deployment Workbench to function correctly. A common workaround is: OpenText Community Windows PE (WinPE) - Microsoft Learn 19 Mar 2023 —
The file you are looking for, Windows PE Boot Files (OnecoreUAP)-x86_en-us.msi, is a sub-component of the Windows Assessment and Deployment Kit (ADK). It is specifically used for creating 32-bit (x86) Windows Preinstallation Environment (WinPE) boot images that utilize the OneCoreUAP codebase—a shared set of APIs across different Windows editions. Direct Download Instructions
Microsoft does not officially provide this .msi as a standalone file on their public website. Instead, it is downloaded automatically by the ADK Windows PE Add-on installer. 1. Official Method (Recommended)
Download the ADK WinPE Add-on: Go to the official Microsoft ADK download page. Run the Installer: Launch adkwinpesetup.exe.
Select Components: During the setup, ensure "Windows Preinstallation Environment" is checked.
Locate the File: Once installed, the underlying .msi files and their extracted contents are placed in:C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Windows Preinstallation Environment\. Technical Context: OneCoreUAP & x86 windows pe boot files -onecoreuap--x86-en-us.msi download
Understanding what this specific file does helps in troubleshooting deployment issues.
What is OneCoreUAP? It is the "Universal API" layer of Windows. WinPE images using these boot files are designed to be more modular and consistent with modern Windows 10/11 system architectures.
The x86 Limitation: Modern versions of the Windows 11 ADK (starting from version 22H2) have dropped support for 32-bit (x86) WinPE.
Solution: If you specifically need the x86 version of these boot files, you must download the ADK for Windows 10, version 2004, which was the last version to fully support 32-bit boot images. 🛠️ Usage Steps
Once you have the files installed via the ADK, you use them through the Deployment and Imaging Tools Environment: Download WinPE (Windows PE) - Microsoft Learn
signtool verify /pa OneCoreUAP--x86-en-us.msi
Warning: distributing or downloading Microsoft installation packages (MSI/MSU/MSP) from unofficial sources can violate licensing and expose systems to malware. Always obtain Microsoft software only from official Microsoft channels.
| Your request | Answer | |--------------|--------| | Helpful paper about that exact MSI download | No such paper exists — the file is not a standard public release. | | How to get real Windows PE boot files | Use Windows ADK’s Windows PE feature. | | What is that file likely from | Internal Microsoft OneCore build (not for public use). |
If you can share where you saw that filename (error log, build script, internal tool), I can give a more precise explanation of what it does and how to replace it with the official equivalent.
windows pe boot files -onecoreuap--x86-en-us.msi
windows pe boot files → Contains boot components for Windows PE (winpe.wim, bootmgr, BCD, etc.)-onecoreuap- → OneCore is Microsoft’s shared core for Windows (PC, Xbox, HoloLens, IoT). uap = Universal Access Platform (UWP related). This indicates an internal or engineering build.x86-en-us → 32-bit, English (US).msi → Installer package, but Windows PE boot files aren’t normally distributed as .msi in official releases.Conclusion: This is almost certainly not a public release file. It may come from:
OneCoreUAP branch)If you want, I can:
(Invoking related-search suggestions now.) Windows PE (WinPE) boot files, specifically for the
Windows PE Boot Files (onecoreuap)-x86_en-us.msi is a component of the Windows Assessment and Deployment Kit (ADK)
. It contains the 32-bit (x86) base system files and optional components used to build a customized Windows Preinstallation Environment (WinPE) Microsoft Learn Official Download Method
Starting with Windows 10, version 1809, WinPE is no longer part of the main ADK installer and must be downloaded as a separate Windows PE Add-on Microsoft Learn To obtain the official files: Download the ADK : Visit the official Microsoft ADK download page
and select the version that matches your target operating system. Download the WinPE Add-on : On the same page, download the Windows PE add-on for the Windows ADK Installation Install the ADK first, ensuring Deployment Tools is selected. Run the WinPE Add-on installer ( adkwinpesetup.exe
). This installer will automatically download and install necessary payloads, including the onecoreuap files, to your local directory. Microsoft Learn File Purpose and Location
Once installed, the x86 boot files are typically located in:
C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Windows Preinstallation Environment\x86 OpenText Community Download WinPE (Windows PE) - Microsoft Learn
The file windows pe boot files -onecoreuap--x86-en-us.msi is a component of the Windows Assessment and Deployment Kit (ADK). This specific package contains the core boot files for the 32-bit (x86) version of the Windows Preinstallation Environment (WinPE) with the "OneCoreUAP" (Universal Architecture Platform) configuration. Purpose and Function
Minimal OS: WinPE is a lightweight version of Windows used for deploying workstations, capturing system images, and repairing existing installations.
x86 Architecture: This specific MSI provides the files needed to boot WinPE on 32-bit UEFI or BIOS systems, as well as 64-bit BIOS PCs.
Deployment Tooling: It is typically used as an add-on to the main ADK to provide the base environment for imaging tools. How to Download and Install
Microsoft does not provide these .msi files as standalone direct downloads for general users. Instead, they are part of the larger ADK WinPE Add-on package. Legal and security notes
Download the Windows ADK: Visit the Official ADK Download Page on Microsoft Learn.
Download the WinPE Add-on: On the same page, download the separate "Windows PE add-on for the ADK".
Run the Installer: Execute the adkwinpesetup.exe file. During installation, it will extract several MSI packages into your system's Windows Kits folder.
Locate the Files: Once installed, the boot files (including the content of the .msi you referenced) can be found in:C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Windows Preinstallation Environment\x86\en-us\. Creating Bootable Media
Once the ADK and WinPE add-on are installed, you can create a bootable USB or ISO using the following steps: WinPE: Adding Windows PowerShell support to Windows PE
windows pe boot files -onecoreuap--x86-en-us.msi is a specific internal component of the Windows Assessment and Deployment Kit (ADK) . It contains the base boot files for the OneCoreUAP
edition of Windows PE (WinPE), which is a lightweight version of Windows used for deploying, repairing, and troubleshooting operating systems. Microsoft Learn Downloading the Files You cannot download this
file as a standalone package from Microsoft. Instead, it is bundled within the broader WinPE installers. To obtain it: Microsoft Learn Download the Windows ADK : Visit the official Microsoft ADK Download Page and download the base setup. Download the WinPE Add-on
: Starting with Windows 10 version 1809, WinPE is a separate download from the ADK. You must download and install the Windows PE Add-on for the ADK to get the necessary boot files. Locate the Files
: Once installed, the x86 boot files are typically found in:
C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Windows Preinstallation Environment\x86 Microsoft Learn Interesting Feature: Custom Recovery Toolset
An "interesting feature" you can build using these files is a Custom Automated Recovery Toolset
. Because WinPE supports Win32 APIs, batch files, and PowerShell, you can create a bootable environment that automatically fixes common issues without user intervention: Microsoft Learn Windows PE (WinPE) - Microsoft Learn