Classes personnalisées : refuser l’accès en lecture
Vérifié avec Windows 11 25H2 — mis à jour le 30 juillet 2026
Pris en charge sur : Au minimum Windows Vista
Chemin dans la console GPO
Configuration utilisateur\Modèles d'administration\Système\Accès au stockage amovible Description
Ce paramètre de stratégie refuse l’accès en lecture aux classes de stockage amovible personnalisées. Si vous activez ce paramètre de stratégie, l’accès en lecture est refusé à ces classes de stockage amovibles. Si vous désactivez ou que vous ne configurez pas ce paramètre de stratégie, l’accès en lecture est autorisé pour ces classes de stockage amovibles.
Registre
HKCU
Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read Nom de valeur : Deny_Read
Activé : Deny_Read = 1
Désactivé : Deny_Read = 0
MDM / Intune (CSP)
./User/Vendor/MSFT/Policy/Config/ADMX_RemovableStorage/CustomClasses_DenyRead_Access_1 Documentation Microsoft Learn Données de correspondance : Microsoft Learn (CC BY 4.0)
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: Classes personnalisées : refuser l’accès en lecture
; State: Enabled
; Supported on: Au minimum Windows Vista
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read]
"Deny_Read"=dword:00000001
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read\List]
; List values: enter one value per line in the builder UI.Autres formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Classes personnalisées : refuser l’accès en lecture
# State: Enabled
# Supported on: Au minimum Windows Vista
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Deny_Read' -Value 1 -Type DWord
$path = 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read\List'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Intune XML
OMA-URI: ./User/Vendor/MSFT/Policy/Config/ADMX_RemovableStorage/CustomClasses_DenyRead_Access_1
Data type: String
Value:
<enabled/>
<!-- CustomClasses_List: enter one value per line before copying this XML payload. -->Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Classes personnalisées : refuser l’accès en lecture
# State: Enabled
# Supported on: Au minimum Windows Vista
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
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
}
# HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read\List: List values: enter one value per line in the builder UI.
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read' -Name 'Deny_Read' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Classes personnalisées : refuser l’accès en lecture
# State: Enabled
# Supported on: Au minimum Windows Vista
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Deny_Read' -Value 1 -Type DWord
$path = 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read\List'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Scripts SCCM
# Exported from gporais.com
# Policy: Classes personnalisées : refuser l’accès en lecture
# State: Enabled
# Supported on: Au minimum Windows Vista
# 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: Classes personnalisées : refuser l’accès en lecture
# State: Enabled
# Supported on: Au minimum Windows Vista
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
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
}
# HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read\List: List values: enter one value per line in the builder UI.
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read' -Name 'Deny_Read' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Classes personnalisées : refuser l’accès en lecture
# State: Enabled
# Supported on: Au minimum Windows Vista
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Deny_Read' -Value 1 -Type DWord
$path = 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\Custom\Deny_Read\List'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Vous construisez une collection multi-paramètres ? Ajoutez ce paramètre et générez des exports combinés (.reg, PowerShell, GPO).