Write Guard

Welcome to the documentation for Write Guard, a command-line tool that makes UWF configuration easier on Windows systems.

This tool offers a menu-driven interface to manage different aspects of UWF, including:

  • Enabling or disabling the UWF filter
  • Protecting or unprotecting volumes
  • Managing file and registry exclusions
  • Configuring overlay settings
  • Controlling servicing mode and updates
  • Automatically turning on required Windows features, like UWF and Device Lockdown

What is UWF?

Unified Write Filter (UWF) is a feature of Windows that protects physical storage by redirecting write operations to a virtual overlay. It is often used in kiosks, ATMs, and embedded devices.

Why Use This Tool?

Manually setting up UWF with uwfmgr commands can be tedious and prone to mistakes. This script simplifies that process with:

  • Simple keyboard-based menus
  • Automatic validation of input
  • Built-in support for reboot prompts
  • Auto-activation of required Windows features
  • Full control over exclusions and overlay behavior

Features Overview

  • Interactive menu system
  • Admin privilege elevation
  • Feature auto-enablement (DISM)
  • Volume and file protections
  • Overlay memory configuration
  • Windows servicing controls
  • Restart prompts when needed

Use Case Scenarios

  • Setting up a read-only Windows device
  • Creating secure embedded systems
  • Managing IoT devices or kiosks
  • Preparing devices for public or high-security environments

Quick Start

See Getting Started for setup and execution instructions.

Author

Created and maintained by Daniel Hernandez.
Contributions and feedback are welcome!