CD and DVD: Deny write access
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Vista
Path in the GPO console
User Configuration\Administrative Templates\System\Removable Storage Access Description
This policy setting denies write access to the CD and DVD removable storage class. If you enable this policy setting, write access is denied to this removable storage class. If you disable or do not configure this policy setting, write access is allowed to this removable storage class.
Registry
HKCU
Software\Policies\Microsoft\Windows\RemovableStorageDevices\{53f56308-b6bf-11d0-94f2-00a0c91efb8b} Value name: Deny_Write
Enabled: Deny_Write = 1
Disabled: Deny_Write = 0
MDM / Intune (CSP)
./User/Vendor/MSFT/Policy/Config/ADMX_RemovableStorage/CDandDVD_DenyWrite_Access_1 Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
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. ⓘ
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: CD and DVD: Deny write access
; State: Enabled
; Supported on: At least Windows Vista
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\RemovableStorageDevices\{53f56308-b6bf-11d0-94f2-00a0c91efb8b}]
"Deny_Write"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: CD and DVD: Deny write access
# State: Enabled
# Supported on: At least 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\{53f56308-b6bf-11d0-94f2-00a0c91efb8b}'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Deny_Write' -Value 1 -Type DWordIntune XML
OMA-URI: ./User/Vendor/MSFT/Policy/Config/ADMX_RemovableStorage/CDandDVD_DenyWrite_Access_1
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: CD and DVD: Deny write access
# State: Enabled
# Supported on: At least 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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\{53f56308-b6bf-11d0-94f2-00a0c91efb8b}' -Name 'Deny_Write' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: CD and DVD: Deny write access
# State: Enabled
# Supported on: At least 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\{53f56308-b6bf-11d0-94f2-00a0c91efb8b}'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Deny_Write' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: CD and DVD: Deny write access
# State: Enabled
# Supported on: At least 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: CD and DVD: Deny write access
# State: Enabled
# Supported on: At least 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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\Windows\RemovableStorageDevices\{53f56308-b6bf-11d0-94f2-00a0c91efb8b}' -Name 'Deny_Write' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: CD and DVD: Deny write access
# State: Enabled
# Supported on: At least 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\{53f56308-b6bf-11d0-94f2-00a0c91efb8b}'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Deny_Write' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.