Windows cannot match the hardware ID with any installed .inf file.

The primary driver package required for the PC to recognize the interface.

Before downloading, verify if your hardware is a genuine ACTIA unit or a clone, as this can affect which driver version is stable. Original units often have unique serial numbers (e.g., beginning with 921815C ), whereas clones frequently share the same generic numbers like 921815B and may include "Made in France" markings that genuine newer units do not have.

Successful installation on Windows 10 may require enabling .NET 3.5 , running the software in XP Compatibility Mode , or disabling Windows Defender to prevent the driver files from being flagged as malicious.

Official drivers are provided by the manufacturer for various hardware tiers. You can find technical downloads for the latest versions on the ACTIA IME Support Page .

These often omit critical filtering components. They frequently suffer from driver drops or firmware corruption when updated past Diagbox version 7.xx.

Browse to your Diagbox installation directory. The driver files are typically located at: C:\APPLIC\LEXIA\Driver\ or C:\AWRoot\bin\fi\Drivers\

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If the global test fails but drivers appear installed, the issue is often power. The Actia needs over 12V from the vehicle. Use a battery booster if the car voltage is low.

Do not plug the USB interface into your computer yet. The necessary driver files are packaged inside the Diagbox/Lexia installer. Run your software setup completely so the driver files are copied to your system directory ( C:\APPLIC\LEXIA\Driver or C:\AWRoot ). Step 2: Connect the Interface