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Require that the Enterprise Mode Site List is available before tab navigation

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

Microsoft Edge 152.0.4191.53

Supported on: Microsoft Edge version 84, Windows 7 or later

Path in the GPO console

Computer Configuration\Administrative Templates\Microsoft Edge

Description

Lets you specify whether Microsoft Edge tabs wait to navigate until the browser downloaded the initial Enterprise Mode Site List. This setting is intended for the scenario where the browser home page should load in Internet Explorer (IE) mode, and it's important that it does so on browser first run after IE mode is enabled. If this scenario doesn't exist, we recommend not enabling this setting because it negatively impacts the performance of loading the home page. The setting only applies when Microsoft Edge doesn't have a cached Enterprise Mode Site List, such as on browser first run after IE mode is enabled. This setting works if 'InternetExplorerIntegrationLevel' (Configure Internet Explorer integration) is set to 'IEMode' and if either the 'InternetExplorerIntegrationSiteList' (Configure the Enterprise Mode Site List) or the 'InternetExplorerIntegrationCloudSiteList' (Configure the Enterprise Mode Cloud Site List) policies be enabled, where the list has at least one entry. The timeout behavior of this policy is configured with the 'NavigationDelayForInitialSiteListDownloadTimeout' (Set a timeout for delay of tab navigation for the Enterprise Mode Site List) policy. If you set this policy to 'All' and when Microsoft Edge doesn't have a cached version of the Enterprise Mode Site List, tabs delay navigating until the browser downloaded the site list. Sites configured to open in Internet Explorer mode by the site list load in Internet Explorer mode, even during the initial navigation of the browser. Sites that can't be configured to open in Internet Explorer, such as any site with a scheme other than http:, https:, file:, or ftp: don't delay navigating and load immediately in Microsoft Edge mode. When used with the 'InternetExplorerIntegrationCloudSiteList' policy, during first launch of Microsoft Edge, there is a delay because implicit sign in needs to finish before Microsoft Edge attempts to download the site list from the Microsoft cloud since this requires authentication to the cloud service. If you set this policy to 'None' or don't configure it and when Microsoft Edge doesn't have a cached version of the Enterprise Mode Site List, tabs navigate immediately and don't wait for the browser to download the Enterprise Mode Site List. Sites configured to open in Internet Explorer mode by the site list open in Microsoft Edge mode until the browser finished downloading the Enterprise Mode Site List. Policy options mapping: * None (0) = None * All (1) = All eligible navigations Use the preceding information when configuring this policy.

Registry

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

More options available

Options

Require that the Enterprise Mode Site List is available before tab navigation
DelayNavigationsForInitialSiteListDownload enum
  • None -> 0
  • All eligible navigations -> 1

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: Require that the Enterprise Mode Site List is available before tab navigation
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 84, Windows 7 or later

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

PowerShell

# Exported from gporais.com
# Policy: Require that the Enterprise Mode Site List is available before tab navigation
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 84, Windows 7 or later

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

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

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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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