Repeat Step 1, but this time go to Search > Show Search Icon to reduce the search box to a magnifying glass icon.
I got rid of the Cortana and Task View buttons. You may have to repeat these steps for each one you want to remove/add. In case that video ever goes missing, here’s what to do: I wanted to reduce the size of the search box and found this very short YouTube video that shows you how:
I have a lot of icons on my taskbar, so when I started using Windows 10, I got frustrated with the amount of space taken up by things I didn’t want, like the Cortana icon, the Task View button, and the big search box.