Choose which browser opens web links: registry value browserchoiceUserHKCU\software\policies\microsoft\office\16.0\common\links

Policy ID: L_M365LinksBrowserChoice
Scope: User Configuration
Supported on: At least Windows Server 2016, Windows 10
Source: Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
Category: Microsoft Office 2016 › Links

Registry

browserchoice

REG_DWORDUser

HKCU\software\policies\microsoft\office\16.0\common\links Current key

Enabled value: Depends on the option value
Element: Browser:

Options
Item	Stored value
System default browser	0
Microsoft Edge	1

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\common\links]

; Options (use only one)
; System default browser
"browserchoice"=dword:00000000
; Microsoft Edge
"browserchoice"=dword:00000001

CMD

:: Options (use only one)

:: System default browser
reg add "HKCU\software\policies\microsoft\office\16.0\common\links" /v "browserchoice" /t REG_DWORD /d 0 /f
:: Microsoft Edge
reg add "HKCU\software\policies\microsoft\office\16.0\common\links" /v "browserchoice" /t REG_DWORD /d 1 /f

PowerShell

# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\common\links' -Force | Out-Null

# Options (use only one)
# System default browser
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\common\links' -Name 'browserchoice' -PropertyType DWord -Value 0 -Force | Out-Null
# Microsoft Edge
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\common\links' -Name 'browserchoice' -PropertyType DWord -Value 1 -Force | Out-Null