This means you lack the Microsoft Visual C++ Redistributable. Download and install the latest “VC_redist.x64.exe” from Microsoft’s official site. Hu Tool 26 requires the 2022 version or newer.
To most, a version update was a minor inconvenience of bug fixes. To Leo, the notification meant he finally had the digital key to the ID6 head unit sitting in front of him. For months, the car’s navigation had been a locked vault, a "Feature Unavailable" message mocking its owner. "Ready?" Leo muttered, more to the machine than himself.