Delete Ensure-RealBitLockerKey.ps1
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@@ -1,149 +0,0 @@
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function Ensure-RealBitLockerKey {
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[CmdletBinding(SupportsShouldProcess=$true, ConfirmImpact='Medium')]
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param(
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[Parameter(ParameterSetName='Single', Position=0)]
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[ValidatePattern('^[A-Z]:$')]
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[string]$MountPoint = $env:SystemDrive,
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[Parameter(ParameterSetName='All')]
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[switch]$AllDisks,
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[switch]$FullReencrypt,
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[switch]$PersistToRegistry,
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[Parameter(Mandatory=$true, ParameterSetName='Persist')]
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[int]$UDFNumber,
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[string]$RegistryBasePath = 'HKLM:\SOFTWARE\CentraStage'
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)
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# Determine target drives
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if ($AllDisks) {
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$targets = Get-WmiObject -Query "SELECT DeviceID FROM Win32_LogicalDisk WHERE DriveType=3" |
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Select-Object -ExpandProperty DeviceID
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}
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else {
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$targets = @($MountPoint)
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}
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$results = @()
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foreach ($d in $targets) {
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if (-not $PSCmdlet.ShouldProcess("Volume $d","Ensure recovery key")) {
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continue
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}
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# Key regex
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$keyPattern = '^\d{6}(-\d{6}){7}$'
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$vol = Get-BitLockerVolume -MountPoint $d
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$curKey = $vol.KeyProtector |
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Where-Object KeyProtectorType -eq 'RecoveryPassword' |
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Select-Object -Last 1 -ExpandProperty RecoveryPassword
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if ($curKey -match $keyPattern) {
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$results += [PSCustomObject]@{
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MountPoint = $d
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Action = 'None'
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RecoveryKey = $curKey
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AuditString = $null
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}
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continue
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}
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# Provision new key
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if ($FullReencrypt) {
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Disable-BitLocker -MountPoint $d -ErrorAction Stop
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while ((Get-BitLockerVolume -MountPoint $d).VolumeStatus -ne 'FullyDecrypted') {
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Start-Sleep 15
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}
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Enable-BitLocker `
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-MountPoint $d `
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-UsedSpaceOnly `
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-SkipHardwareTest `
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-TpmProtector `
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-RecoveryPasswordProtector `
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-ErrorAction Stop
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$action = 'FullReencrypt'
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}
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else {
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$vol.KeyProtector |
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Where-Object KeyProtectorType -eq 'RecoveryPassword' |
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ForEach-Object { Remove-BitLockerKeyProtector -MountPoint $d -KeyProtectorId $_.KeyProtectorId }
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Add-BitLockerKeyProtector -MountPoint $d -RecoveryPasswordProtector -ErrorAction Stop
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$action = 'AddProtector'
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}
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# Grab the newly provisioned key
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$newKey = (Get-BitLockerVolume -MountPoint $d).KeyProtector |
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Where-Object KeyProtectorType -eq 'RecoveryPassword' |
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Select-Object -Last 1 -ExpandProperty RecoveryPassword
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$auditString = $null
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if ($PersistToRegistry) {
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# -- Replace PowerShell 7 ternary with if/else --
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if ($env:usrAlert -match 'true') {
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$alert = 'Notice'
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}
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else {
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$alert = 'Status'
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}
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# -- Build TPM mask --
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$t = Get-Tpm
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$mask = (if ($t.TpmPresent) { 1 } else { 0 }) + `
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(if ($t.TpmReady) { 6 } else { 0 })
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# Capture and discard the switch output
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switch ($mask) {
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0 { $state = 'Absent'; break }
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1 { $state = 'Disabled'; break }
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3 { $state = 'Deactivated'; break }
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7 { $state = 'Active'; break }
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Default { $state = 'Error' }
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}
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$null = $state
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# -- Replace PowerShell 7 “? :” for drives list --
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if ($AllDisks) {
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$drives = $targets
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}
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else {
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$drives = ,$d
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}
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# Build disk-status string
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$diskStatus = ''
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foreach ($x in $drives) {
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$stat = (Get-BitLockerVolume -MountPoint $x).VolumeStatus
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switch ($stat) {
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'FullyEncrypted' { $code = 'ENCPASS'; break }
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'EncryptionInProgress' { $code = 'ENCPASS'; break }
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'DecryptionInProgress' { $code = 'ENCFAIL'; break }
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'EncryptionSuspended' { $code = 'ENCFAIL'; break }
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'DecryptionSuspended' { $code = 'ENCFAIL'; break }
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'EncryptingWipeInProgress' { $code = 'ENCFAIL'; break }
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Default { $code = 'ENCFAIL' }
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}
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$diskStatus += "/$x`$$code"
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}
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$diskStatus = $diskStatus.TrimStart('/')
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$auditString = "TPM: $mask | DISKS: $diskStatus | RECOVERY: $newKey"
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# Persist to registry/UDF
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New-ItemProperty `
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-Path $RegistryBasePath `
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-Name "Custom$UDFNumber" `
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-Value $auditString `
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-Force | Out-Null
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}
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$results += [PSCustomObject]@{
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MountPoint = $d
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Action = $action
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RecoveryKey = $newKey
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AuditString = $auditString
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}
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}
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return $results
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}
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