Set how links are opened in Internet Explorer: registry value AssociationActivationModeUserHKCU\Software\Policies\Microsoft\Internet Explorer\Main

Policy ID
DefaultLinksView
Scope
Computer Configuration, User Configuration
Supported on
At least Internet Explorer 10.0 on Windows 8
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Windows Components › Internet Explorer › Internet Settings

Registry

AssociationActivationMode

REG_DWORDUserComputer
Enabled value
Depends on the option value
Element
Default browser launch behavior for links
Options
ItemStored value
Let Internet Explorer decide0
Always in Internet Explorer1
Always in Internet Explorer on the desktop2
Apply with .reg · CMD · PowerShell
UserPer-account setting
.reg
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Main]

; Options (use only one)
; Let Internet Explorer decide
"AssociationActivationMode"=dword:00000000
; Always in Internet Explorer
"AssociationActivationMode"=dword:00000001
; Always in Internet Explorer on the desktop
"AssociationActivationMode"=dword:00000002
CMD
:: Options (use only one)

:: Let Internet Explorer decide
reg add "HKCU\Software\Policies\Microsoft\Internet Explorer\Main" /v "AssociationActivationMode" /t REG_DWORD /d 0 /f
:: Always in Internet Explorer
reg add "HKCU\Software\Policies\Microsoft\Internet Explorer\Main" /v "AssociationActivationMode" /t REG_DWORD /d 1 /f
:: Always in Internet Explorer on the desktop
reg add "HKCU\Software\Policies\Microsoft\Internet Explorer\Main" /v "AssociationActivationMode" /t REG_DWORD /d 2 /f
PowerShell
# Common: create the key
New-Item -Path 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Main' -Force | Out-Null

# Options (use only one)
# Let Internet Explorer decide
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'AssociationActivationMode' -PropertyType DWord -Value 0 -Force | Out-Null
# Always in Internet Explorer
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'AssociationActivationMode' -PropertyType DWord -Value 1 -Force | Out-Null
# Always in Internet Explorer on the desktop
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'AssociationActivationMode' -PropertyType DWord -Value 2 -Force | Out-Null
ComputerMachine-wide setting
.reg
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Internet Explorer\Main]

; Options (use only one)
; Let Internet Explorer decide
"AssociationActivationMode"=dword:00000000
; Always in Internet Explorer
"AssociationActivationMode"=dword:00000001
; Always in Internet Explorer on the desktop
"AssociationActivationMode"=dword:00000002
CMD
:: Options (use only one)

:: Let Internet Explorer decide
reg add "HKLM\Software\Policies\Microsoft\Internet Explorer\Main" /v "AssociationActivationMode" /t REG_DWORD /d 0 /f
:: Always in Internet Explorer
reg add "HKLM\Software\Policies\Microsoft\Internet Explorer\Main" /v "AssociationActivationMode" /t REG_DWORD /d 1 /f
:: Always in Internet Explorer on the desktop
reg add "HKLM\Software\Policies\Microsoft\Internet Explorer\Main" /v "AssociationActivationMode" /t REG_DWORD /d 2 /f
PowerShell
# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' -Force | Out-Null

# Options (use only one)
# Let Internet Explorer decide
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'AssociationActivationMode' -PropertyType DWord -Value 0 -Force | Out-Null
# Always in Internet Explorer
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'AssociationActivationMode' -PropertyType DWord -Value 1 -Force | Out-Null
# Always in Internet Explorer on the desktop
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'AssociationActivationMode' -PropertyType DWord -Value 2 -Force | Out-Null