Zadig

USB driver installation made easy

Zadig is a Windows application that installs generic USB drivers, such as WinUSB, libusb-win32/libusb0.sys or libusbK, to help you access USB devices.

It can be especially useful for cases where:

you want to access a device using a libusb-based application
you want to upgrade a generic USB driver
you want to access a device using WinUSB

Note: "libusb-based" above means an application that uses either libusb, libusb-win32 or libusbK.

Download

Updated 2024.06.13:

Zadig 2.9 (5.1 MB)
Other versions

System Requirements:

Windows 7 or later.
Windows XP and Windows Vista are NO LONGER SUPPORTED.

Usage

Download the executable and run it — no installation is necessary.
If elevation is required, you will be prompted for it.

An usage guide for Zadig is available HERE.

The executable is digitally signed and the signature should state: "Akeo Consulting"

Frequently Asked Questions (FAQ)

A Zadig FAQ is available HERE.

To provide feedback, report a bug or request an enhancement please use the github issue tracker. Or you can send an e-mail.

License

GNU General Public License (GPL) version 3 or later.
You are free to distribute, modify or even sell the software, insofar as you respect the GPLv3 license.

Zadig is based on libwdi which uses an LGPL version 3 or later license.

The executable is produced in a 100% transparent manner, from its public source, using a Visual Studio environment.

Changelog

Version 2.9 (2024.06.13)
- Add libusb-win32 ARM64 driver installation support (courtesy of Peter Dons Tychsen)
  Note: Requires Windows 10 1511 or later with x86 (32-bit) emulation support.
- Fix UAC not being properly triggered during driver installation (courtesy of Andrew Meyer)
- Embedded drivers: WinUSB v6.1.7600.16385, libusb-win32 v1.4.0.0, libusbK v3.1.0.0 & USBSer (native)

Source Code

libwdi 1.5.1 source (330 KB). Includes Zadig in the examples directory.
Alternatively, you can clone the git repository using:
```
$ git clone git://github.com/pbatard/libwdi
```
For more information, see the GitHub project.

If you are a developer, you are very much encouraged to tinker with Zadig/libwdi and submit patches.