Microsoft has released a million different iterations of Windows for various purposes over the past few decades. While some of them are rather well-known, others remain relatively obscure. Today, we will talk about one such Windows variant, which is called Windows PE. We will explain all you need to know about Windows PE (also known as WinPE), its history, its relevance, and what it is used for today. We will also talk about how it is different from the regular version of Windows.

In this article, we will take a deep dive into Windows PE and learn about how it works. We will also discuss other technical details about the software, including its features, benefits, limitations, hardware requirements, and more. Finally, we will also see how WinPE is similar or dissimilar to the mainstream Windows distributions. So without any further delay, let’s dive right in.

  • What is Windows PE (WinPE)?
  • What is WinPE Used For?
  • What is Windows Recovery Environment (WinRE)?
  • How Does Windows PE Work?
  • Supported Windows Features
  • Hardware Requirements for Windows PE
  • WinPE Limitations
  • How Can You Download WinPE and Create Rescue Disks?

What is Windows PE (WinPE)?

Windows Preinstallation Environment, also known as Windows PE or WinPE, is a lightweight version of Windows used to install, deploy, and repair Windows and Windows Server installations on desktops, servers, and workstations. It also comes in handy for troubleshooting Windows operating systems in offline environments. With that said, one can think of Windows PE as a lightweight version of Windows with limited functionality for installation and recovery purposes. Windows PE 10.0 Based on Windows 10 / Image Courtesy: Microsoft

Windows PE has traditionally been used by large corporations for deployment and troubleshooting purposes, while OEMs have used it extensively to preinstall Windows client and server operating systems on PCs during manufacturing. One of the main uses of Windows PE is to help set up your hard drive before installing Windows. With WinPE, you can also install Windows by using apps or scripts from a network or a local drive.

Some of the other notable uses of Windows PE (WinPE) include capturing and applying Windows images (ISOs), modifying the OS when it’s not running, setting up automatic recovery tools, and recovering data from unbootable devices. It also lets you add your own custom shell or GUI to automate these kinds of tasks.

A successor to the Windows Recovery Console, Windows Recovery Environment (WinRE) is a set of tools based on Windows PE. It helps diagnose and recover Windows PCs from critical errors that may prevent the OS from booting successfully. WinRE is built into the newer versions of Windows, starting with Vista, and you may boot it from hard disks, optical media (CDs, etc.), and PXE (Preboot eXecution Environment).

WinPE boots into both UEFI and legacy BIOS mode, which means you can choose either based on your setup. You can check out our detailed article on UEFI vs BIOS, where we have discussed the similarities and differences between the two.

As for WinPE, it first loads the boot sector before the Bootmgr takes control of boot configuration. Finally, the Winload.exe process within boot.wim loads the Hardware Abstraction Layer (HAL). This helps load the registry hive and boot drivers and create a pathway for WinPE installation.

WinPE is a definitive step up from the DOS-based recovery options, which lacked support for many of the critical features in modern operating systems. That includes support for TCP/ IP, modern device drivers, 64-bit environments, latest file systems, and a lot more. Windows PE runs the command line environment and supports the following Windows features:

Hardware Requirements for Windows PE

Windows PE has the same requirements as the corresponding version of desktop Windows, but with a few exceptions. Here are a few things you should remember while using WinPE:

WinPE Limitations

As mentioned already, Windows PE is not a general-purpose operating system, either on PCs, as a thin client, or an embedded OS. Then again, WinPE is not intended to be a replacement for Windows (client or server) in the first place. It is only suitable for large-scale Windows deployment and recovery of Windows installations on desktops, laptops, servers, and workstations.

  • File server or Terminal Server use
  • Joining a network domain
  • Connecting to an IPv4 network from Windows PE on an IPv6 network
  • Remote Desktop
  • .MSI installation files
  • Booting from a path that contains non-English characters
  • Running 64-bit apps on the 32-bit version of Windows PE
  • Adding bundled app packages through DISM (.appxbundle packages)

How Can You Download WinPE and Create Rescue Disks?

Starting with Windows 10 version 1809, Microsoft is offering WinPE as a free add-on to the Windows Assessment and Deployment Kit (ADK). Users can install the ADK and the WinPE add-ons to start working with the software.