Configure the Search button on the taskbar in Windows 10
4/17/2015
By default, the search box is displayed on Windows 10 taskbar. You can change its appearance or hide it if you want.
1. Right-click on Windows 10 taskbar.
2. When the context menu appears, point to Search, and then select one of the following options:
A) Disabled - to hide search from taskbar;
Result:
B) Show search icon - to show search in taskbar as a button;
Result:
C) Show search box - to restore the default setting and display the search box.
Result:
Make sure that the Use small taskbar buttons option is disabled in taskbar properties. Otherwise the search box cannot be displayed on the taskbar.
More about Taskbar and Start Menu: