#Requires -Version 5.1
<#
    JbTecWiz Support Centre -- generated fix script

    Fault : 0x80090016 -- Windows Hello and the TPM: "Something went wrong, your PIN isn't available"
    Fix   : Clear and re-provision the TPM
    Source: https://jbtecwiz.com/support/win-tpm-hello

    Run as     : Windows and firmware
    Expect     : 45 minutes
    Risk       : high
    Reversible : NO -- read the undo note below before running

    WHEN THIS IS THE RIGHT FIX
    The container rebuild did not help, or Get-Tpm reports the TPM is not
    ready. Clearing the TPM destroys every key it holds.

    HOW TO UNDO IT
    None -- TPM keys cannot be restored. BitLocker is recovered with the key
    saved in step 2.

    This script walks the fix one step at a time and asks before each
    one. Steps with no command are things you do yourself -- it prints
    those and waits. Run with -DryRun to print without executing.

    --------------------------------------------------------------------
    NO WARRANTY - USE AT YOUR OWN RISK

    This script is provided by JbTecWiz as-is and with no warranty of any
    kind, express or implied. You run it entirely at your own risk.

    JbTecWiz accepts no liability for any loss or damage arising from its
    use, including but not limited to data loss, downtime, or configuration
    changes that turn out to be wrong for your system.

    You are responsible for reading this script before running it, for
    satisfying yourself that it suits the machine in front of you, and for
    having a working backup first. Some steps cannot be undone.
    --------------------------------------------------------------------
#>

[CmdletBinding()]
param(
    # Print every step and command without running anything.
    [switch]$DryRun,
    # Do not ask before each step. Read the script first if you use this.
    [switch]$Unattended
)

$ErrorActionPreference = 'Stop'
$script:Failed = 0

function Write-Rule { param([string]$Text)
    Write-Host ''
    Write-Host ('-' * 70) -ForegroundColor DarkGray
    if ($Text) { Write-Host $Text -ForegroundColor Cyan }
}

function Show-Prose { param([string]$Text, [string]$Colour = "Gray")
    if (-not $Text) { return }
    $words = $Text -split "\s+"; $line = "  "
    foreach ($w in $words) {
        if (($line.Length + $w.Length) -gt 74) { Write-Host $line -ForegroundColor $Colour; $line = "  " }
        $line += "$w "
    }
    if ($line.Trim()) { Write-Host $line -ForegroundColor $Colour }
}

function Invoke-Step {
    param(
        [int]$Number, [string]$Do, [string]$Why,
        [scriptblock]$Command, [switch]$Manual, [string]$Shell = "powershell"
    )
    Write-Rule "  Step $Number of 6"
    Show-Prose $Do "White"
    if ($Why) { Write-Host ""; Show-Prose $Why "DarkGray" }

    if ($Manual) {
        Write-Host ''
        Write-Host '  -> Do this yourself, then press Enter to carry on.' -ForegroundColor Yellow
        if (-not $Unattended -and -not $DryRun) { [void](Read-Host) }
        return
    }

    Write-Host ''
    foreach ($l in ($Command.ToString().Trim() -split "`n")) {
        Write-Host ("    " + $l.Trim()) -ForegroundColor Green
    }
    Write-Host ''

    if ($DryRun) { Write-Host "  (dry run -- not executed)" -ForegroundColor DarkGray; return }
    if (-not $Unattended) {
        $a = Read-Host "  Run this step? [Y]es / [S]kip / [Q]uit"
        if ($a -match "^[Qq]") { Write-Host "  Stopped at your request."; exit 0 }
        if ($a -match "^[Ss]") { Write-Host "  Skipped." -ForegroundColor DarkGray; return }
    }
    try { & $Command }
    catch {
        $script:Failed++
        Write-Host ("  Step $Number failed: " + $_.Exception.Message) -ForegroundColor Red
        Show-Prose "The rest of the fix may depend on this. Read the write-up before carrying on." "Red"
        if (-not $Unattended) {
            $c = Read-Host "  Carry on anyway? [y/N]"
            if ($c -notmatch "^[Yy]") { exit 1 }
        }
    }
}

Write-Rule
Write-Host '  0x80090016 -- Windows Hello and the TPM: "Something went wrong, your PIN isn''t available"' -ForegroundColor White
Write-Host '  Clear and re-provision the TPM' -ForegroundColor Cyan
Write-Host ''
Write-Host '  Risk: high   NOT REVERSIBLE   45 minutes' -ForegroundColor Yellow
Write-Host ''
Show-Prose 'Undo: None -- TPM keys cannot be restored. BitLocker is recovered with the key saved in step 2.' 'Yellow'
Write-Host ''
Show-Prose 'No warranty. Use at your own risk - JbTecWiz accepts no liability. Read it before you run it, and have a backup.' 'DarkYellow'
Write-Rule

if (-not $Unattended -and -not $DryRun) {
    $go = Read-Host '  Ready? [y/N]'
    if ($go -notmatch "^[Yy]") { Write-Host "  Nothing was changed."; exit 0 }
}

Invoke-Step -Number 1 -Do 'Check whether BitLocker is on. If it is, suspend it or save the recovery key somewhere off the machine before going further.' -Why 'Clearing the TPM destroys the BitLocker key protector. Without the recovery key the drive is unrecoverable -- this is the single most expensive mistake in this whole procedure.' -Command {
    Get-BitLockerVolume | Format-Table MountPoint, VolumeStatus, ProtectionStatus -AutoSize
}

Invoke-Step -Number 2 -Do 'Save the recovery key.' -Command {
    (Get-BitLockerVolume -MountPoint C:).KeyProtector | Where-Object KeyProtectorType -eq 'RecoveryPassword' | Format-List KeyProtectorId, RecoveryPassword
}

Invoke-Step -Number 3 -Do 'Suspend BitLocker for one restart.' -Command {
    Suspend-BitLocker -MountPoint C: -RebootCount 2
}

Invoke-Step -Number 4 -Do 'Clear the TPM.' -Command {
    Clear-Tpm
}

Invoke-Step -Number 5 -Do 'Accept the firmware prompt during the restart -- it will not clear without a physical confirmation.' -Manual

Invoke-Step -Number 6 -Do 'Set the PIN up again and resume BitLocker.' -Command {
    Resume-BitLocker -MountPoint C:
}

Write-Rule "  Confirm it worked"
Show-Prose 'Get-Tpm reports ready and owned, and the PIN survives a restart.' 'White'
Write-Host ''
if (-not $DryRun) {
    Get-Tpm | Format-List TpmReady, TpmOwned
}

Write-Rule
if ($script:Failed -gt 0) {
    Write-Host ("  Finished with " + $script:Failed + " failed step(s).") -ForegroundColor Yellow
    Show-Prose 'Read the full write-up at https://jbtecwiz.com/support/win-tpm-hello' 'Yellow'
} else {
    Write-Host '  Finished.' -ForegroundColor Green
}
Write-Host ''
Show-Prose 'To undo: None -- TPM keys cannot be restored. BitLocker is recovered with the key saved in step 2.' 'DarkGray'
Write-Rule