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

    Fault : STOP 0x0000007B -- INACCESSIBLE_BOOT_DEVICE
    Fix   : Re-enable the boot storage driver offline from WinRE
    Source: https://jbtecwiz.com/support/win-stop-0x7b

    Run as     : Windows Recovery Environment (command prompt)
    Expect     : 10-15 minutes
    Risk       : medium
    Reversible : yes

    WHEN THIS IS THE RIGHT FIX
    Firmware is correct, or you need Windows to load a driver it currently
    has disabled. This edits the offline registry, so read the rollback note
    first.

    HOW TO UNDO IT
    Boot WinRE again, load the hive as in step 3 and set the Start value
    back to 3 (manual) for whichever service you changed. If the machine
    will not boot at all afterwards, restore the SYSTEM hive from
    C:\Windows\System32\config\RegBack if your build still populates 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 7"
    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 '  STOP 0x0000007B -- INACCESSIBLE_BOOT_DEVICE' -ForegroundColor White
Write-Host '  Re-enable the boot storage driver offline from WinRE' -ForegroundColor Cyan
Write-Host ''
Write-Host '  Risk: medium   Reversible   10-15 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 'Boot from Windows installation media (or hold Shift while clicking Restart) and go to Repair your computer -> Troubleshoot -> Command Prompt.' -Manual

Invoke-Step -Number 2 -Do 'Identify the drive letter the Windows installation has inside WinRE. It is very often D:, not C:.' -Why 'WinRE assigns its own letters. Editing the wrong hive silently does nothing.' -Command {
    cmd.exe /c 'diskpart & list volume & exit'
}

Invoke-Step -Number 3 -Do 'Load the offline SYSTEM hive under a temporary key.' -Command {
    cmd.exe /c 'reg load HKLM\OFF D:\Windows\System32\config\SYSTEM'
}

Invoke-Step -Number 4 -Do 'Set the boot-start drivers to load. Run all of these -- the ones that do not apply simply have no effect.' -Why 'Start=0 means boot-start: the driver is loaded by the boot loader before the disk is needed. Anything else is too late to read the system volume.' -Command {
    cmd.exe /c 'reg add "HKLM\OFF\ControlSet001\Services\storahci" /v Start /t REG_DWORD /d 0 /f & reg add "HKLM\OFF\ControlSet001\Services\stornvme" /v Start /t REG_DWORD /d 0 /f & reg add "HKLM\OFF\ControlSet001\Services\iaStorV" /v Start /t REG_DWORD /d 0 /f & reg add "HKLM\OFF\ControlSet001\Services\msahci" /v Start /t REG_DWORD /d 0 /f & reg add "HKLM\OFF\ControlSet001\Services\pciide" /v Start /t REG_DWORD /d 0 /f'
}

Invoke-Step -Number 5 -Do 'If list volume showed more than one control set, repeat step 4 against ControlSet002.' -Command {
    cmd.exe /c 'reg query HKLM\OFF /f ControlSet00* /k'
}

Invoke-Step -Number 6 -Do 'Unload the hive cleanly. Do not skip this -- an unloaded hive can be left locked.' -Command {
    cmd.exe /c 'reg unload HKLM\OFF'
}

Invoke-Step -Number 7 -Do 'Exit and restart.' -Manual

Write-Rule "  Confirm it worked"
Show-Prose 'Windows boots. Once in, confirm the controller driver is running.' 'White'
Write-Host ''
if (-not $DryRun) {
    Get-Service storahci, stornvme | Format-Table -AutoSize
}

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-stop-0x7b' 'Yellow'
} else {
    Write-Host '  Finished.' -ForegroundColor Green
}
Write-Host ''
Show-Prose 'To undo: Boot WinRE again, load the hive as in step 3 and set the Start value back to 3 (manual) for whichever service you changed. If the machine will not boot at all afterwards, restore the SYSTEM hive from C:\Windows\System32\config\RegBack if your build still populates it.' 'DarkGray'
Write-Rule