VHDX Sector Size
Verified with Microsoft FSLogix — updated on July 10, 2026
Supported on: v2105 or later
Path in the GPO console
Computer Configuration\Administrative Templates\FS Logix\Profile Containers Description
NOTE: Once this policy is Enabled, only Disable will remove the registry value. Enabled to Not Configured will have NO EFFECT. This setting is only applicable if the virtual disk type is VHDX NOTE: The default is the sytem default which is the same as "Not Configured" Registry Entry: HKLM\SOFTWARE\FSLogix\Profiles\VHDXSectorSize Type: DWORD Values: 0 = System Default, 512, 4096
Registry
HKLM
Software\FSLogix\Profiles 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: VHDX Sector Size
; State: Enabled
; Supported on: v2105 or later
[HKEY_LOCAL_MACHINE\Software\FSLogix\Profiles]
"VHDXSectorSize"=dword:00000200More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: VHDX Sector Size
# State: Enabled
# Supported on: v2105 or later
$path = 'HKLM:\Software\FSLogix\Profiles'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'VHDXSectorSize' -Value 512 -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: VHDX Sector Size
# State: Enabled
# Supported on: v2105 or later
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\FSLogix\Profiles' -Name 'VHDXSectorSize' -Expected 512 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: VHDX Sector Size
# State: Enabled
# Supported on: v2105 or later
$path = 'HKLM:\Software\FSLogix\Profiles'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'VHDXSectorSize' -Value 512 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: VHDX Sector Size
# State: Enabled
# Supported on: v2105 or later
# 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: VHDX Sector Size
# State: Enabled
# Supported on: v2105 or later
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\FSLogix\Profiles' -Name 'VHDXSectorSize' -Expected 512 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: VHDX Sector Size
# State: Enabled
# Supported on: v2105 or later
$path = 'HKLM:\Software\FSLogix\Profiles'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'VHDXSectorSize' -Value 512 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.