Policy
Inclusion list for low file types
Microsoft Windows
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP
This policy setting allows you to configure the list of low-risk file types. If the attachment is in the list of low-risk file types, Windows will not prompt the user before accessing the file, regardless of the file's zone information. This inclusion list overrides the list of high-risk file types built into Windows and has a lower precedence than the high-risk or medium-risk inclusion lists (where an extension is listed in more than one inclusion list). If you enable this policy setting, you can specify file types that pose a low risk. If you disable this policy setting, Windows uses its default trust logic. If you do not configure this policy setting, Windows uses its default trust logic.
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.
| Scope | Element | Type | Registry mapping | Constraints & behavior | Copy |
|---|---|---|---|---|---|
| User | Specify low risk extensions (include a leading period, e.g. .bmp;.gif;). ID AM_InstructLowRiskInclusionList | text | Path Software\Microsoft\Windows\CurrentVersion\Policies\Associations Value name LowRiskFileTypes Type REG_SZ | None |