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

    Fault : Device Manager Code 43 -- "Windows has stopped this device"
    Fix   : Clear the device state properly before touching drivers
    Source: https://jbtecwiz.com/support/win-hw-code43

    Run as     : The machine itself
    Expect     : 15 minutes
    Risk       : low
    Reversible : yes

    WHEN THIS IS THE RIGHT FIX
    Always first. It costs a quarter of an hour and resolves a surprising
    share of these outright.

    HOW TO UNDO IT
    powercfg /hibernate on restores Fast Startup and hibernation.

    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 4"
    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 '  Device Manager Code 43 -- "Windows has stopped this device"' -ForegroundColor White
Write-Host '  Clear the device state properly before touching drivers' -ForegroundColor Cyan
Write-Host ''
Write-Host '  Risk: low   Reversible   15 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 'Shut down fully -- not restart, and not with Fast Startup active, which only hibernates the kernel and preserves the broken device state.' -Why 'This is the whole point of the step. A restart keeps the power on and a normal shutdown with Fast Startup enabled saves the driver state to disk and reloads it, faults included.' -Command {
    cmd.exe /c 'shutdown /s /f /t 0'
}

Invoke-Step -Number 2 -Do 'Unplug the machine from the mains, remove the battery if it is removable, and hold the power button for thirty seconds.' -Manual

Invoke-Step -Number 3 -Do 'Reconnect and boot. Check whether the device has come back.' -Command {
    Get-PnpDevice -Status Error,Degraded,Unknown | Format-Table Status,Class,FriendlyName,InstanceId -AutoSize
}

Invoke-Step -Number 4 -Do 'If Fast Startup is on, turn it off while diagnosing -- it will mask everything you do next.' -Command {
    cmd.exe /c 'powercfg /hibernate off'
}

Write-Rule "  Confirm it worked"
Show-Prose 'The device shows Status OK.' 'White'
Write-Host ''
if (-not $DryRun) {
    Get-PnpDevice -FriendlyName '*your device*' | Format-List FriendlyName,Status,Problem,ProblemDescription
}

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-hw-code43' 'Yellow'
} else {
    Write-Host '  Finished.' -ForegroundColor Green
}
Write-Host ''
Show-Prose 'To undo: powercfg /hibernate on restores Fast Startup and hibernation.' 'DarkGray'
Write-Rule