Make sure you have the correct crack/keygen for 3.38 – some patches are flagged by antivirus, so add an exclusion before installing.
Here’s a for someone trying to install Autodata 3.38 on Windows 7 32-bit : Title: Works on Windows 7 32-bit – but needs a few tweaks Autodata 3.38 Install Windows 7 32bit
Recommended if you still need legacy Autodata on older hardware. For Windows 10/11, better to use a VM. Make sure you have the correct crack/keygen for 3