In this article I am going to show the steps to hide the Search Option on the Microsoft Portal Navigation Bar.

Step 1 : Navigate to the Dynamics 365 Portals App

Step 2 : Goto the “Site Settings” Menu

Step 3 : Update the Value of the following Settings records from “True” to “False”
- Search/Enabled

Step 4 : Restart the portal and hit F5 on the Portal Brower to view the changes (View the following article for instructions on how to restart the Portal)
I Hope this article will help you in your day to day consulting work . If there are any questions please feel free to email or comment.