LetRecovery

A Free and Open-Source Windows System Reinstallation Tool

English | 简体中文

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💡 LetRecovery is free and open-source, forever. Please get it only from the official channels listed below — beware of third-party paid resellers.

✨ Features

🖥️ System Installation

• Multi-format images - WIM / ESD / SWM / GHO / ISO (including Windows XP / 2003 i386 text-mode setup), auto mount & parse, multi-edition selection
• Desktop & WinPE - One-click deploy from desktop; when reinstalling the current system drive it auto-writes boot and reboots into WinPE to finish
• BitLocker-encrypted system reinstall - Automatically unlocks/decrypts the BitLocker-encrypted system drive before deployment
• Unattended install - Built-in generated or custom unattend.xml, and auto-detects answer files embedded in the source image / install media to default the checkbox accordingly
• Boot mode - UEFI / Legacy auto-detected, manually selectable

💾 System Backup

• Full / incremental backup - Back up the system partition to WIM / ESD / SWM / GHO
• Custom name & description

🌐 Online Download

• System images / common software - Fetched online, accelerated by multi-threaded Aria2

🔧 Advanced Options

• Format partition, boot repair (UEFI / Legacy)
• Driver export (DISM API) / import, storage-controller driver injection
• Registry injection, remove preinstalled UWP apps, OOBE bypass, disable Update / Defender and other tweaks
• WiFi profile migration

🛠️ Toolbox

• BitLocker management - unlock / decrypt / suspend·resume protection / view recovery key
• Password reset - clear account password online (current system) or offline (other systems)
• Image verify / file hash verify - check image integrity before deployment
• Quick partition / partition clone / batch format
• Losslessly expand C: drive - losslessly expand the current system C: drive: auto-downloads WinPE if missing, installs PE boot, then reboots into WinPE to resize
• Driver backup & restore, import storage drivers
• Remove APPX apps, NVIDIA driver uninstall, time sync, view GHO password, SpaceSniffer disk analysis, one-click boot repair

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🚀 Quick Start

System Requirements

• Windows 10/11 (64-bit)
• Administrator privileges
• At least 4GB available memory
• UEFI or Legacy BIOS boot support

Usage

1. Download - Get the latest version from Releases
2. Run as Administrator - Right-click the program and select "Run as administrator"
3. Select Image - Choose local or online image in "System Install" page
4. Select Target Partition - Choose the target partition for system installation
5. Start Installation - Click the "Start Install" button

⚠️ Warning: System installation will format the target partition. Please backup important data first!

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📁 Project Structure

LetRecovery/
├── 正常系统端/          # Windows Desktop Environment Version
│   ├── src/
│   │   ├── app.rs       # Main application
│   │   ├── core/        # Core modules
│   │   │   ├── bcdedit.rs   # BCD boot editing
│   │   │   ├── disk.rs      # Disk partition management
│   │   │   ├── dism.rs      # DISM image operations
│   │   │   ├── ghost.rs     # GHO image restoration
│   │   │   └── registry.rs  # Registry operations
│   │   ├── download/    # Download management
│   │   │   ├── aria2.rs     # Aria2 download engine
│   │   │   └── manager.rs   # Download manager
│   │   ├── ui/          # User interface
│   │   └── utils/       # Utility functions
│   └── Cargo.toml
├── PE端/               # WinPE Environment Version
│   ├── src/
│   │   ├── app.rs
│   │   ├── core/
│   │   ├── ui/
│   │   └── utils/
│   └── Cargo.toml
└── LICENSE

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🛠️ Tech Stack

Technology	Purpose
Rust	Primary programming language
egui/eframe	Cross-platform GUI framework
tokio	Async runtime
windows-rs	Windows API bindings
aria2	High-speed download engine
DISM	System image deployment
Ghost	GHO image restoration

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🏗️ Building from Source

Prerequisites

• Rust 1.75 or higher
• Visual Studio Build Tools (Windows)

Build Steps

# Clone the repository
git clone https://github.com/NORMAL-EX/LetRecovery.git
cd LetRecovery

# Build Normal System Version
cd 正常系统端
cargo build --release

# Build PE Version
cd ../PE端
cargo build --release

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📄 License

This project is licensed under the PolyForm Noncommercial License 1.0.0.

• ✅ Personal learning, research, and non-commercial use allowed
• ✅ Modification and distribution allowed (with copyright notice)
• ❌ Commercial use prohibited

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🙏 Acknowledgments

• System images and PE download services provided by Cloud-PE
• Thanks to 电脑病毒爱好者 for providing WinPE

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👤 Author

NORMAL-EX (also known as dddffgg)

• GitHub: @NORMAL-EX

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🔗 Links

• 🌐 Website: sysre.cn
• 📦 Releases: GitHub Releases
• 🐛 Issues: GitHub Issues

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If you find this project helpful, please give it a ⭐ Star!