Some users won’t like is how much space the Search Box / Search Bar takes up in the Windows-10 task bar. So, how to shrink or hide the Search box in Windows 10.
Shrink the Search Box
Right-click on the search bar itself (or on any blank space in the task bar) and select Search > Show Search Icon.
Hide Search Box from the Task bar
Right-click on the search bar itself (or on any blank space in the task bar) and select Search > Hidden.
In some Desktop/Laptop, there is Cortana Search Bar. Above procedure to Shrink or Hide Cortana Search Bar. On right click there is Cortana instead of Search.