Hide the common dialog back button: registry value NoBackButtonUserHKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Comdlg32
- Policy ID
- NoBackButton
- 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