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Set the default "share additional operating system region" setting

Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026

Microsoft Edge 152.0.4191.53

Supported on: Microsoft Edge version 108, Windows 7 or later

Path in the GPO console

Computer Configuration\Administrative Templates\Microsoft Edge - Default Settings (users can override)

Description

This policy controls the default value for the "share additional operating system region" setting in Microsoft Edge. The "share additional operating system region" Microsoft Edge setting controls whether the OS Regional format setting is shared with the web through the default JavaScript locale. If shared, websites can query the OS Regional format using JavaScript code, for example; "Intl.DateTimeFormat().resolvedOptions().locale". The default value for the setting is "Limited". If you set this policy to "Limited", the OS Regional format is shared only if its language part matches the Microsoft Edge display language. If you set this policy to "Always", the OS Regional format is always shared. This value could cause unexpected website behavior if the OS Regional format language is different from the Microsoft Edge display language. For example, if a website uses the JavaScript default locale to format dates, the names of the days and months are displayed in one language while the surrounding text is displayed in another language. If you set this policy to "Never", the OS Regional format is never shared. Example 1: In this example the OS Regional format is set to "en-GB", and the browser display language is set to "en-US". Then the OS Regional format is shared if the policy is set to "Limited", or "Always". Example 2: In this example the OS Regional format is set to "es-MX", and the browser display language is set to "en-US". Then the OS Regional format is shared if the policy is set to "Always"; however, the OS Regional format isn't shared if the policy is set to "Limited". For more information about this setting, see https://go.microsoft.com/fwlink/?linkid=2222282. Policy options mapping: * Limited (0) = Limited * Always (1) = Always share the OS Regional format * Never (2) = Never share the OS Regional format Use the preceding information when configuring this policy.

Registry

HKLM Software\Policies\Microsoft\Edge\Recommended
HKCU Software\Policies\Microsoft\Edge\Recommended

More options available

Options

'Set the default "share additional operating system region" setting
DefaultShareAdditionalOSRegionSetting enum
  • Limited -> 0
  • Always share the OS Regional format -> 1
  • Never share the OS Regional format -> 2

Export Builder

BETA

Configure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.

These exports write the registry — this is not a managed GPO.

Scope

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Set the default "share additional operating system region" setting
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 108, Windows 7 or later

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\Recommended]
"DefaultShareAdditionalOSRegionSetting"=dword:00000000
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Set the default "share additional operating system region" setting
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 108, Windows 7 or later

$path = 'HKLM:\Software\Policies\Microsoft\Edge\Recommended'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DefaultShareAdditionalOSRegionSetting' -Value 0 -Type DWord

Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.

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What to embed
Theme

Adds one script line: the theme follows your site’s appearance and the height fits the content. If your site blocks scripts, the embed follows the visitor’s system theme.

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