kb5128776

KB5128776 is a Microsoft update that refreshes the NVIDIA TensorRT-RTX Execution Provider on Windows 11 24H2 and 25H2, moving it to version 2.2609.1.0. This component is part of Windows ML and runs ONNX AI models on GeForce RTX GPUs, so the update matters mainly to users running AI features in apps built on Windows ML with NVIDIA RTX hardware. Delivered automatically through Windows Update, it replaces KB5121777 and is a routine runtime refresh rather than a feature release, graphics driver, or security patch. Microsoft's notice describes only general improvements, making the practical questions what the component does and whether a given PC has it.