Microsoft should always have the most recently updated instructions
By default, most of the CCAC-provided laptops are setup to operate with a closed lid when connected to a dock or monitor. If you are using a personal laptop, it is suggested to use instructions and resources provided by Microsoft. For the most up-to-date instructions on how to change settings, please refer to this article directly from Microsoft Learning Center on using a monitor with a closed laptop or this article with instructions on how to shut down, sleep, or hibernate your PC.