Policy overview

Key metadata and intent for this policy.

ClassComputer
CategoryWindows Components > Internet Explorer > Security Features > Local Machine Zone Lockdown Security
Supported onAt least Internet Explorer 6.0 in Windows XP with Service Pack 2 or Windows Server 2003 with Service Pack 1

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2003, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP

Internet Explorer places zone restrictions on each Web page it opens, which are dependent upon the location of the Web page (Internet, Intranet, Local Machine zone, and so on). Web pages on the local computer have the fewest security restrictions and reside in the Local Machine zone. Local Machine zone security applies to all local files and content. This feature helps to mitigate attacks where the Local Machine zone is used as an attack vector to load malicious HTML code. If you enable this policy setting and enter a value of 1, Local Machine Zone security applies. If you enter a value of 0, Local Machine Zone security does not apply. If a Value Name is empty or the Value is not 0 or 1, the policy setting is ignored. Do not enter the Internet Explorer processes in this list: use the related Internet Explorer Processes policy to enable or disable IE processes. If the All Processes policy setting is enabled, the processes configured in this box take precedence over that setting. If you disable or do not configure this policy setting, the security feature is allowed.

Internal name
IESF_PolicyProcessList_4
Policy ID
c1595e40ee2c
Elements
1

Registry values

How enabled and disabled states update the registry.

Registry locationTypeEnabled valueDisabled value
HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\ListBox_Support_FEATURE_LOCALMACHINE_LOCKDOWNREG_DWORD
1
0

Policy elements

Inputs and configuration options exposed by this policy.

ElementTypeRegistry mappingConstraints & behavior
Process List:
ID IESF_PartnameProcessList
list
HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN\ListBox_Support_FEATURE_LOCALMACHINE_LOCKDOWN
Type REG_MULTI_SZ
List: additive, explicit value

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