How does Win10 disable Cortana to change Cortana search box to search icon

Just right click on the blank space on the taskbar and display the “Search” submenu menu in the pop-up context menu. As shown in the figure:

In the “Search” menu, you can see the “Disabled” option. Select it to disable Cortana Microsoft. You will find the Cortana search box in the taskbar. Immediately disappeared and disappeared.
Or you can also select “Show search icon", so that the wider search box becomes a space-saving search icon, and clicking the search icon will still pop up the Cortana Microsoft Xiaona window. As shown in the figure:

and you will find that the search box is already displayed in the pop-up Cortana window, so the Cortana Microsoft Xiaona feature is preserved, saves the taskbar space, and looks more beautiful.
Cortana can be said to be Microsoft's attempt in the field of machine learning and artificial intelligence, not simply based on stored questions and answers, but dialogue. It records user behavior and usage habits, and uses cloud computing, search engines, and “unstructured data” to analyze, read, and “learn” text files, emails, images, videos, and more to understand users. Semantics and context to achieve human-computer interaction.