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Fix capture and restore of signed dword/qword registry values

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Co-authored-by: Copilot <copilot@github.com>
This commit is contained in:
Jeffrey
2026-05-11 19:14:08 +02:00
parent 8ac664e45f
commit 24a6f1bcf8
3 changed files with 27 additions and 9 deletions
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11
Scripts/Features/BackupRegistrySnapshotCapture.ps1
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@@ -226,13 +226,20 @@ function Convert-RegistryValueToSnapshot {
$valueKind = $RegistryKey.GetValueKind($ValueName)
$value = $RegistryKey.GetValue($ValueName, $null, [Microsoft.Win32.RegistryValueOptions]::DoNotExpandEnvironmentNames)
try {
$normalizedValue = switch ($valueKind) {
([Microsoft.Win32.RegistryValueKind]::Binary) { @($value | ForEach-Object { [int]$_ }) }
([Microsoft.Win32.RegistryValueKind]::MultiString) { @($value) }
([Microsoft.Win32.RegistryValueKind]::DWord) { [uint32]$value }
([Microsoft.Win32.RegistryValueKind]::QWord) { [uint64]$value }
([Microsoft.Win32.RegistryValueKind]::DWord) { [BitConverter]::ToUInt32([BitConverter]::GetBytes([int32]$value), 0) }
([Microsoft.Win32.RegistryValueKind]::QWord) { [BitConverter]::ToUInt64([BitConverter]::GetBytes([int64]$value), 0) }
default { if ($null -ne $value) { [string]$value } else { $null } }
}
}
catch {
$valueType = if ($null -ne $value) { $value.GetType().FullName } else { '<null>' }
$valueForLog = if ($null -eq $value) { '<null>' } elseif ($value -is [array]) { ($value -join ',') } else { [string]$value }
throw "Failed to normalize registry value for backup. Key='$($RegistryKey.Name)' Name='$ValueName' Kind='$valueKind' RawType='$valueType' RawValue='$valueForLog'. InnerError: $($_.Exception.Message)"
}
return @{
Name = $ValueName

5
Scripts/Features/ExecuteChanges.ps1
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@@ -170,8 +170,13 @@ function ExecuteAllChanges {
}
Write-Host "> Creating registry backup..."
try {
New-RegistrySettingsBackup -ActionableKeys $actionableKeys | Out-Null
}
catch {
throw "Registry backup failed before applying changes. $($_.Exception.Message)"
}
}
# Create restore point if requested (CLI only - GUI handles this separately)
if ($script:Params.ContainsKey("CreateRestorePoint")) {

10
Scripts/Features/RestoreRegistryApplyState.ps1
View File

@@ -157,8 +157,14 @@ function Convert-RegistryValueDataFromBackup {
)
switch ($Kind) {
([Microsoft.Win32.RegistryValueKind]::DWord) { return [uint32]$Data }
([Microsoft.Win32.RegistryValueKind]::QWord) { return [uint64]$Data }
([Microsoft.Win32.RegistryValueKind]::DWord) {
$unsigned = [uint32]$Data
return [BitConverter]::ToInt32([BitConverter]::GetBytes($unsigned), 0)
}
([Microsoft.Win32.RegistryValueKind]::QWord) {
$unsigned = [uint64]$Data
return [BitConverter]::ToInt64([BitConverter]::GetBytes($unsigned), 0)
}
([Microsoft.Win32.RegistryValueKind]::MultiString) { return @($Data | ForEach-Object { [string]$_ }) }
([Microsoft.Win32.RegistryValueKind]::Binary) {
$bytes = Convert-BackupDataToByteArray -Data $Data