Windows PE (Windows Preinstallation Environment) is a lightweight, bootable version of Windows that runs entirely from your computer's memory (RAM) or USB drive without needing an active operating system on your hard drive.
This Windows PE Includes ALL Optional Components that is possible to integrate (except Setup, FontSupport and LegacySetup).
System Recovery & Repair: Troubleshooting unbootable PCs, fixing boot records (BCD/MBR), and recovering lost or locked files from a failing drive.
Disk Imaging & Backups: Capturing or deploying full-system disk images (WIM/ISO) using tools like ImageX or DISM.
OS Deployment & Setup: Partitioning disks, running custom setup scripts, and bootstrapping Windows installations over local storage or networks.
Offline Hardware Servicing: Ingesting device drivers, testing hardware stability, or flashing firmware without Windows locking system files.
Installing Windows Betas: Windows Betas have often buggy Windows PE, You can bypass using These of Windows PE.
Not a Daily OS: It is strictly a maintenance environment; it does not feature the full Windows desktop shell, file explorer GUI, or consumer applications.
Temporary RAM Disk (X:\): All files and changes written to the boot environment are stored in memory and permanently wiped upon reboot.
Automatic 72-Hour Reboot: To prevent unauthorized use as a production OS, Windows PE automatically stops processing and reboots after 72 hours of continuous use.
Limited Subsystem Support: It lacks support for 32-bit execution layers on pure 64-bit builds, audio subsystems, and complex application runtimes (.NET Framework / PowerShell on older Vista-era builds).
This Windows PE is originally used for deploying Windows Server 2003, but you can use as general Windows PE.