mirror of
https://github.com/Raphire/Win11Debloat.git
synced 2026-05-18 19:56:25 +00:00
Refactor registry operation functions
This commit is contained in:
Jeffrey
@@ -1,3 +1,16 @@
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function Get-NormalizedRegistryValueName {
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param(
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[AllowNull()]
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$ValueName
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)
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if ([string]::IsNullOrEmpty([string]$ValueName)) {
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return ''
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}
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return [string]$ValueName
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}
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function Convert-RegOperationToValueKind {
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param(
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[Parameter(Mandatory)]
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@@ -6,6 +19,7 @@ function Convert-RegOperationToValueKind {
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$valueName = if ([string]::IsNullOrEmpty([string]$Operation.ValueName)) { '' } else { [string]$Operation.ValueName }
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$valueType = [string]$Operation.ValueType
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$operationKeyPath = [string]$Operation.KeyPath
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switch ($valueType) {
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'DWord' {
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@@ -49,7 +63,7 @@ function Convert-RegOperationToValueKind {
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'HexB' {
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$qwordBytes = [byte[]]$Operation.ValueData
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if ($qwordBytes.Count -gt 8) {
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throw "Unsupported hex value type '$valueType' with invalid byte count '$($qwordBytes.Count)' while applying reg operation for '$($Operation.KeyPath)'."
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throw "Unsupported hex value type '$valueType' with invalid byte count '$($qwordBytes.Count)' while applying reg operation for '$operationKeyPath'."
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}
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if ($qwordBytes.Count -lt 8) {
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@@ -64,10 +78,10 @@ function Convert-RegOperationToValueKind {
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}
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default {
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if ($valueType -like 'Hex*') {
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throw "Unsupported hex value type '$valueType' while applying reg operation for '$($Operation.KeyPath)'."
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throw "Unsupported hex value type '$valueType' while applying reg operation for '$operationKeyPath'."
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}
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throw "Unsupported value type '$valueType' while applying reg operation for '$($Operation.KeyPath)'"
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throw "Unsupported value type '$valueType' while applying reg operation for '$operationKeyPath'"
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}
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}
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}
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@@ -128,6 +142,101 @@ function Get-RegistryKeyForOperation {
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return [PSCustomObject]@{ RootKey = $rootKey; SubKeyPath = $subKeyPath; Key = $key }
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}
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function Invoke-RegistryDeleteValueOperation {
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param(
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[Parameter(Mandatory)]
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$Operation,
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[Parameter(Mandatory)]
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$KeyInfo
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)
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if ($null -eq $KeyInfo.Key) {
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return
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}
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try {
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$valueName = Get-NormalizedRegistryValueName -ValueName $Operation.ValueName
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$KeyInfo.Key.DeleteValue($valueName, $false)
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}
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finally {
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$KeyInfo.Key.Close()
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}
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}
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function Invoke-RegistrySetValueOperation {
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param(
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[Parameter(Mandatory)]
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$Operation,
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[Parameter(Mandatory)]
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$KeyInfo
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)
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if ($null -eq $KeyInfo.Key) {
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throw [System.UnauthorizedAccessException]::new("Unable to open or create registry key '$($Operation.KeyPath)'")
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}
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try {
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$setArgs = Convert-RegOperationToValueKind -Operation $Operation
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$KeyInfo.Key.SetValue($setArgs.Name, $setArgs.Value, $setArgs.Kind)
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}
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finally {
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$KeyInfo.Key.Close()
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}
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}
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function Write-RegistryOperationAccessDeniedWarning {
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param(
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[Parameter(Mandatory)]
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$Operation,
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[Parameter(Mandatory)]
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[string]$ExceptionMessage
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)
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$keyPath = [string]$Operation.KeyPath
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$operationType = [string]$Operation.OperationType
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if ($operationType -eq 'SetValue' -or $operationType -eq 'DeleteValue') {
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$valueName = Get-NormalizedRegistryValueName -ValueName $Operation.ValueName
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$displayValueName = if ([string]::IsNullOrEmpty($valueName)) { '(Default)' } else { $valueName }
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Write-Warning "Skipping operation '$operationType' on key '$keyPath' value '$displayValueName' due to access restrictions: $ExceptionMessage"
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return
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}
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Write-Warning "Skipping operation '$operationType' on key '$keyPath' due to access restrictions: $ExceptionMessage"
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}
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function Invoke-RegistryOperation {
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param(
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[Parameter(Mandatory)]
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$Operation,
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[Parameter(Mandatory)]
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[string]$RegFilePath
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)
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$operationType = [string]$Operation.OperationType
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$isSetValueOperation = $operationType -eq 'SetValue'
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$isDeleteKeyOperation = $operationType -eq 'DeleteKey'
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$keyInfo = Get-RegistryKeyForOperation -RegistryPath $Operation.KeyPath -CreateIfMissing:$isSetValueOperation -OpenKey:(-not $isDeleteKeyOperation)
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switch ($operationType) {
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'DeleteKey' {
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if ($null -ne $keyInfo.SubKeyPath) {
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Remove-RegistrySubKeyTreeIfExists -RootKey $keyInfo.RootKey -SubKeyPath $keyInfo.SubKeyPath
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}
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}
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'DeleteValue' {
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Invoke-RegistryDeleteValueOperation -Operation $Operation -KeyInfo $keyInfo
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}
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'SetValue' {
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Invoke-RegistrySetValueOperation -Operation $Operation -KeyInfo $keyInfo
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}
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default {
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throw "Unsupported reg operation type '$($Operation.OperationType)' in '$RegFilePath'"
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}
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}
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}
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function Invoke-RegistryOperationsFromRegFile {
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param(
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[Parameter(Mandatory)]
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@@ -140,58 +249,11 @@ function Invoke-RegistryOperationsFromRegFile {
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foreach ($operation in $operations) {
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try {
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$keyInfo = Get-RegistryKeyForOperation -RegistryPath $operation.KeyPath -CreateIfMissing:($operation.OperationType -eq 'SetValue') -OpenKey:($operation.OperationType -ne 'DeleteKey')
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switch ($operation.OperationType) {
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'DeleteKey' {
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if ($null -ne $keyInfo.SubKeyPath) {
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Remove-RegistrySubKeyTreeIfExists -RootKey $keyInfo.RootKey -SubKeyPath $keyInfo.SubKeyPath
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}
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}
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'DeleteValue' {
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if ($null -ne $keyInfo.Key) {
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try {
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$valueName = if ([string]::IsNullOrEmpty([string]$operation.ValueName)) { '' } else { [string]$operation.ValueName }
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$keyInfo.Key.DeleteValue($valueName, $false)
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}
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finally {
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$keyInfo.Key.Close()
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}
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}
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}
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'SetValue' {
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if ($null -eq $keyInfo.Key) {
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throw [System.UnauthorizedAccessException]::new("Unable to open or create registry key '$($operation.KeyPath)'")
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}
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try {
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$setArgs = Convert-RegOperationToValueKind -Operation $operation
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$keyInfo.Key.SetValue($setArgs.Name, $setArgs.Value, $setArgs.Kind)
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}
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finally {
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$keyInfo.Key.Close()
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}
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}
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default {
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throw "Unsupported reg operation type '$($operation.OperationType)' in '$RegFilePath'"
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}
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}
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Invoke-RegistryOperation -Operation $operation -RegFilePath $RegFilePath
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}
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catch [System.UnauthorizedAccessException], [System.Security.SecurityException] {
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$accessDeniedCount++
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$keyPath = [string]$operation.KeyPath
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$opType = [string]$operation.OperationType
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$valueName = [string]$operation.ValueName
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if ($opType -eq 'SetValue' -or $opType -eq 'DeleteValue') {
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$display = if ([string]::IsNullOrEmpty($valueName)) { '(Default)' } else { $valueName }
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Write-Warning "Skipping operation '$opType' on key '$keyPath' value '$display' due to access restrictions: $($_.Exception.Message)"
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}
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else {
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Write-Warning "Skipping operation '$opType' on key '$keyPath' due to access restrictions: $($_.Exception.Message)"
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}
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continue
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Write-RegistryOperationAccessDeniedWarning -Operation $operation -ExceptionMessage $_.Exception.Message
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}
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}
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@@ -218,8 +280,10 @@ function Invoke-RegistryImportViaPowerShell {
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Invoke-RegistryOperationsFromRegFile -RegFilePath $targetRegFilePath
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}
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$hiveAlreadyLoaded = $HiveAlreadyLoaded.IsPresent
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if ($UseOfflineHive) {
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if ((Get-Command -Name Invoke-WithLoadedBackupHive -ErrorAction SilentlyContinue) -and -not $HiveAlreadyLoaded.IsPresent) {
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if ((Get-Command -Name Invoke-WithLoadedBackupHive -ErrorAction SilentlyContinue) -and -not $hiveAlreadyLoaded) {
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return Invoke-WithLoadedBackupHive -ScriptBlock $applyScript -ArgumentObject $RegFilePath
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}
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@@ -227,7 +291,7 @@ function Invoke-RegistryImportViaPowerShell {
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throw "Offline hive path was not provided for fallback import of '$RegFilePath'"
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}
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if (-not $HiveAlreadyLoaded.IsPresent) {
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if (-not $hiveAlreadyLoaded) {
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$global:LASTEXITCODE = 0
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reg load "HKU\Default" $OfflineHiveDatPath | Out-Null
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$loadExitCode = $LASTEXITCODE
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