In the Windows 10 taskbar, the Cortana button is displayed by default.
If you wish, you can hide it. Let’s see how to do this.
Hit the Show Cortana button. You can find this one between News and interests and Show People on the taskbar.
That’s it. To revert, follow the steps above.
Here’s an alternate method:
Before continuing, I recommend making a backup of the Registry.
Go to HKEY_CURRENT_USER > Software > Microsoft > Windows > CurrentVersion > Explorer > Advanced.
Double-click on the ShowCortanaButton in the right pane.
Now enter 0 (to hide) or 1 (to show) in the Value data field.
Hit the OK button.