Use HTTP 1.1 through proxy connections
Verified with Windows 11 25H2 — updated on July 23, 2026
Supported on: At least Internet Explorer 8.0
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Internet Explorer\Internet Control Panel\Advanced Page User Configuration\Administrative Templates\Windows Components\Internet Explorer\Internet Control Panel\Advanced Page Description
This policy setting allows you to manage whether Internet Explorer uses HTTP 1.1 through proxy connections. If you enable this policy setting, Internet Explorer uses HTTP 1.1 through proxy connections. If you disable this policy setting, Internet Explorer does not use HTTP 1.1 through proxy connections. If you do not configure this policy setting, users can configure Internet Explorer to use or not use HTTP 1.1 through proxy connections.
Registry
HKLM
SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings HKCU
SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings Value name: ProxyHttp1.1
Enabled: ProxyHttp1.1 = 1
Disabled: ProxyHttp1.1 = 0
Export Builder
BETAConfigure 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. ⓘ
Applying both scopes creates an ambiguous configuration (computer takes precedence over user). Only do this intentionally.
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Use HTTP 1.1 through proxy connections
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: At least Internet Explorer 8.0
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyHttp1.1"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Use HTTP 1.1 through proxy connections
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: At least Internet Explorer 8.0
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProxyHttp1.1' -Value 1 -Type DWordIntune XML
No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Use HTTP 1.1 through proxy connections
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: At least Internet Explorer 8.0
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'ProxyHttp1.1' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Use HTTP 1.1 through proxy connections
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: At least Internet Explorer 8.0
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProxyHttp1.1' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Use HTTP 1.1 through proxy connections
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: At least Internet Explorer 8.0
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Use HTTP 1.1 through proxy connections
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: At least Internet Explorer 8.0
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'ProxyHttp1.1' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Use HTTP 1.1 through proxy connections
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: At least Internet Explorer 8.0
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProxyHttp1.1' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.