: For version 3.38, you may need to enable Test Mode in Windows to allow the installation of unsigned drivers. Tools like DSEO (Driver Signature Enforcement Overrider) are often used for this purpose.
Autodata 3.38 is very old (circa 2011). Because it is frequently distributed as "abandonware" or via unofficial sources, it can be unstable on modern builds of Windows 10. For professional workshop use, the modern Autodata Online is the recommended (and much faster) version. Are you running into a specific error code Autodata 3.38 Install Windows 10
: Start the required dongle emulator with Administrator privileges to finalize the connection between the software and the license. Common Troubleshooting for Windows 10 : For version 3
Follow these on-screen instructions carefully: : For version 3.38