This is a very common topic in automotive forums because many J2534 pass-thru devices (often sold as "Mini VCI" for Toyota Techstream) use older hardware drivers that are not digitally signed. This causes major headaches when trying to install them on modern Windows 10 or Windows 11 x64 systems.
The “Multi Driver” aspect is critical. Unlike standard drivers that only support one protocol (e.g., J2534 Pass-Thru), the Multi driver allows the same hardware to work across multiple software platforms: autokent mvci multi driver x64 new