Policy

Show security warning for potentially unsafe files

Windows 11 25H2

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Policy overview

Key metadata and intent for this policy.

ClassComputer
CategoryWindows Components > Internet Explorer > Internet Control Panel > Security Page > Trusted Sites Zone
Supported onAt least Internet Explorer 7.0

This policy setting controls whether or not the "Open File - Security Warning" message appears when the user tries to open executable files or other potentially unsafe files (from an intranet file share by using File Explorer, for example). If you enable this policy setting and set the drop-down box to Enable, these files open without a security warning. If you set the drop-down box to Prompt, a security warning appears before the files open. If you disable this policy setting, these files do not open. If you do not configure this policy setting, the user can configure how the computer handles these files. By default, these files are blocked in the Restricted zone, enabled in the Intranet and Local Computer zones, and set to prompt in the Internet and Trusted zones.

Internal name
IZ_Policy_UnsafeFiles_5
Policy ID
20a53dea5d8a
Elements
1

Registry values

How enabled and disabled states update the registry.

No explicit registry values are set for enabled or disabled states.

Policy elements

Inputs and configuration options exposed by this policy.

ElementTypeRegistry mappingConstraints & behavior
Launching programs and unsafe files
ID IZ_Partname1806
enum
HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\1806
Type REG_DWORD
Options: Enable (0), Disable (3), Prompt (1)

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