While most modern software is 64-bit, the Autocom hardware interface relies on legacy 32-bit kernel-mode drivers. Windows 11 still supports these, but only if Secure Boot and Memory Integrity (Core Isolation) are disabled. By default, Windows 11 blocks unsigned or legacy drivers outright.
For production shops, run Windows 7 x64 in VMware Workstation Pro (USB 2.0 passthrough) on Windows 11 host: Delphi Autocom Windows 11
The most interesting bug users report on Windows 11 is "CAN Bus Error – No communication." The hardware works, the drivers are loaded, but the car won't talk. While most modern software is 64-bit, the Autocom
The Fix (Don't laugh): Go to Device Manager -> Universal Serial Bus controllers -> Right-click each "USB Root Hub" -> Properties -> Power Management -> Uncheck "Allow the computer to turn off this device." For production shops, run Windows 7 x64 in
Why? Windows 11 aggressively powers down USB ports to save battery. Autocom needs real-time voltage on pin 6/14 (CAN lines). A split-second power drop = corrupted handshake.
Because you need to install the old USB drivers, you must boot Windows 11 into a special mode.