Hide the common dialog places bar: registry value NoPlacesBarUserHKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Comdlg32

Policy ID
NoPlacesBar
Scope
User Configuration
Supported on
At least Windows 2000
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Windows Components › File Explorer › Common Open File Dialog

Registry

NoPlacesBar

-User