Disable PDF handler switching
Vérifié avec Adobe Acrobat Reader — mis à jour le 2 septembre 2026
Pris en charge sur : Undefined
Chemin dans la console GPO
Configuration ordinateur\Modèles d'administration\Adobe Acrobat Reader DC\Preferences\General Description
Disables the ability to change the specified default handler (PDF viewer). The UI configuration does not set any key in HKCU. Instead, changing the setting via the UI invokes the installer which sets the key in HKLM. The default application behavior varies depending on what is installed. A value of 1 disables the user's ability to change the default handler. Possible values include: 0 (or null): Allow the user to change the default viewer. 1: Don't allow the user to change the default viewer. GUI mapping - Edit > Preferences > General > Select Default PDF Handler
Registre
HKLM
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockdown Nom de valeur : bDisablePDFHandlerSwitching
Activé : bDisablePDFHandlerSwitching = 1
Désactivé : bDisablePDFHandlerSwitching = 0
Générateur d'exports
BETAConfigurez l'état, la portée et les options, puis générez les sorties .reg, PowerShell, Intune et SCCM — ou ajoutez le paramètre à une collection multi-paramètres.
Ces exports écrivent le registre — ce n'est pas une GPO managée. ⓘ
Fichier .reg
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Disable PDF handler switching
; State: Enabled
; Supported on: Undefined
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockdown]
"bDisablePDFHandlerSwitching"=dword:00000001Autres formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Disable PDF handler switching
# State: Enabled
# Supported on: Undefined
$path = 'HKLM:\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockdown'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'bDisablePDFHandlerSwitching' -Value 1 -Type DWordIntune XML
Aucune correspondance directe Policy CSP / OMA-URI pour cette stratégie. Utilisez l'onglet Intune Remediation, ou importez l'ADMX dans Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Disable PDF handler switching
# State: Enabled
# Supported on: Undefined
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockdown' -Name 'bDisablePDFHandlerSwitching' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Disable PDF handler switching
# State: Enabled
# Supported on: Undefined
$path = 'HKLM:\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockdown'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'bDisablePDFHandlerSwitching' -Value 1 -Type DWordScripts SCCM
# Exported from gporais.com
# Policy: Disable PDF handler switching
# State: Enabled
# Supported on: Undefined
# 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: Disable PDF handler switching
# State: Enabled
# Supported on: Undefined
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockdown' -Name 'bDisablePDFHandlerSwitching' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Disable PDF handler switching
# State: Enabled
# Supported on: Undefined
$path = 'HKLM:\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockdown'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'bDisablePDFHandlerSwitching' -Value 1 -Type DWordVous construisez une collection multi-paramètres ? Ajoutez ce paramètre et générez des exports combinés (.reg, PowerShell, GPO).