Do not display search results as the user types

Category

User Configuration > Administrative Templates > Microsoft Outlook 2016 > Outlook Options > Preferences > Search Options

Scope

User

Registry Key

HKCU\software\policies\microsoft\office\16.0\outlook\search

Description

By default, search results are displayed as the user types a search query. This functionality (known as WordWheeling) can be turned off by enabling this setting.