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

    Fault : "Secure Boot isn't configured correctly" or Secure Boot Violation
    Fix   : Clear the desktop watermark state
    Source: https://jbtecwiz.com/support/win-sec-secure-boot

    Run as     : Elevated PowerShell
    Expect     : 20 minutes
    Risk       : medium
    Reversible : yes

    WHEN THIS IS THE RIGHT FIX
    Windows boots normally but the desktop carries the message.

    HOW TO UNDO IT
    bcdedit /set testsigning on re-enables it if a development driver
    genuinely requires it.

    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 5"
    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 '  "Secure Boot isn''t configured correctly" or Secure Boot Violation' -ForegroundColor White
Write-Host '  Clear the desktop watermark state' -ForegroundColor Cyan
Write-Host ''
Write-Host '  Risk: medium   Reversible   20 minutes'
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 the actual Secure Boot state before assuming.' -Command {
    Confirm-SecureBootUEFI
    Get-CimInstance Win32_ComputerSystem | Format-List Model,Manufacturer
}

Invoke-Step -Number 2 -Do 'If it returns False, the fix is in the firmware -- enable Secure Boot there. The machine has to be in UEFI mode with a GPT disk for the option to exist.' -Manual

Invoke-Step -Number 3 -Do 'If it returns True, the watermark is a test-signing or custom policy state.' -Command {
    cmd.exe /c 'bcdedit /enum {current} | findstr /i "testsigning nointegritychecks flightsigning"'
}

Invoke-Step -Number 4 -Do 'Turn test signing off if it was left on by a driver install.' -Why 'Test signing allows unsigned kernel drivers to load. It is normally enabled deliberately during development and left on by accident -- and while it is on, the kernel will accept a driver nobody has vetted.' -Command {
    cmd.exe /c 'bcdedit /set testsigning off & bcdedit /set nointegritychecks off'
}

Invoke-Step -Number 5 -Do 'Restart.' -Manual

Write-Rule "  Confirm it worked"
Show-Prose 'The watermark is gone and Confirm-SecureBootUEFI returns True.' 'White'
Write-Host ''
if (-not $DryRun) {
    cmd.exe /c 'Confirm-SecureBootUEFI & bcdedit /enum {current} | findstr /i testsigning'
}

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-sec-secure-boot' 'Yellow'
} else {
    Write-Host '  Finished.' -ForegroundColor Green
}
Write-Host ''
Show-Prose 'To undo: bcdedit /set testsigning on re-enables it if a development driver genuinely requires it.' 'DarkGray'
Write-Rule