martyn brewer Greetings & Welcome to Microsoft Q&A forum!
Are you referring to Kinect for Windows?
Manufacturing of the Kinect for Windows has been discontinued. The next generation of Microsoft’s category-defining depth sensor lives on in the Azure Kinect DK, a developer kit with advanced AI sensors for sophisticated computer vision and speech models. For more details please visit the Azure Kinect website.
Please refer to Troubleshooting and Common issues guide and Troubleshoot issues and errors with the Xbox One Kinect Sensor and see if it helps to resolve your issue.