Policy

Do not preserve zone information in file attachments

Windows 11 25H2

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Policy overview

Key metadata and intent for this policy.

ClassUser
CategoryWindows Components > Attachment Manager
Supported onAt least Windows XP Professional with SP2

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP

This policy setting allows you to manage whether Windows marks file attachments with information about their zone of origin (such as restricted, Internet, intranet, local). This requires NTFS in order to function correctly, and will fail without notice on FAT32. By not preserving the zone information, Windows cannot make proper risk assessments. If you enable this policy setting, Windows does not mark file attachments with their zone information. If you disable this policy setting, Windows marks file attachments with their zone information. If you do not configure this policy setting, Windows marks file attachments with their zone information.

Internal name
AM_MarkZoneOnSavedAtttachments
Policy ID
4faaa009520b
Elements
0

Registry values

How enabled and disabled states update the registry.

Registry locationTypeEnabled valueDisabled value
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments\SaveZoneInformationREG_DWORD
1
2

Policy elements

Inputs and configuration options exposed by this policy.

This policy has no additional user input fields.

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