PowerShell を使ってWindows 用インストールUSBメモリを作る

以前投稿した記事「Windows 10 Build 10041をUSBメモリーからインストールしたい～Diskpart コマンド」はコマンド プロンプトを使ってWindows 用インストールUSBメモリーを作成しました。
今回はPowerShell を使ってWindows 用インストールUSBメモリを作成するスクリプトを書いてみました。
ドライブ レターなどパラメータを数個指定するだけで自動的にインストールUSBメモリーが出来上がります。

入力項目は4つ

• USBメモリーのディスク番号
• 作成するインストールUSBメモリーのラベル(最大11文字)
• 作成するインストールUSBメモリーのドライブ レター
• コピー元となるインストール メディアが入ったドライブ レター

New-WinUsbInstaller.ps1

	#Requires -Version 3.0
	#Requires -RunAsAdministrator
	<#
	.SYNOPSIS
	Create Windows USB Installer Script using PowerShell.
	.EXAMPLE
	C:\PS> .\New-WinUsbInstaller.ps1
	.NOTES
	2016/11/08 First Release.
	#>
	# -------------------------------------------------------------------
	# Parameters
	# -------------------------------------------------------------------
	# Show Disk list
	Get-Disk
	# Input USB Memory's Disk Number
	Write-Output "`nInput USB Memory's Disk Number."
	$number = Read-Host "->"
	if($number -eq ""){
	Write-Output "No Input."
	exit
	}
	elseif((Get-Disk | Measure-Object).Count -le $number){
	Write-Output "Problem in the Disk Number."
	exit
	}
	# Input USB Memory Disk's Label
	Write-Output "`nInput USB Memory Label(11 to character)"
	$label = Read-Host "->"
	if($label.Length -gt 11){
	Write-Output "Label is a maximum of 11 characters."
	exit
	}
	elseif($label -eq ""){
	$label = "volume"
	}
	# Input USB Memory Disk's Drive Letter
	Write-Output "`nInput USB Memory Disk's Drive Letter(ex D)"
	$usbDriveLetter = Read-Host "->"
	if((Test-Path -path "$($usbDriveLetter):\") -eq $true){
	Write-Output "Are you sure you want to format $($usbDriveLetter) drive?"
	$input = Read-Host "Y(es) or N(o) ->"
	if($input.ToUpper() -ne "Y" -and $input.ToUpper() -ne "Yes"){
	Write-Output "Stop process."
	exit
	}
	}
	elseif($usbDriveLetter -eq ""){
	Write-Output "No Input."
	exit
	}
	# Input Install Media's Drive Letter
	Write-Output "`nInput Install Media's Drive Letter(ex E)"
	$installDriveLetter = Read-Host "->"
	if((Test-Path -path "$($installDriveLetter):\") -eq $false){
	Write-Output "Stop process."
	exit
	}
	elseif($usbDriveLetter -eq ""){
	Write-Output "No Input."
	exit
	}
	# -------------------------------------------------------------------
	# Format USB Memory Drive
	# -------------------------------------------------------------------
	try{
	# Clean Disk
	# https://technet.microsoft.com/en-us/library/hh848661.aspx
	Write-Output "Clear Disk"
	Clear-Disk -Number $number -RemoveData -RemoveOEM -Confirm:$false
	# Initialize Disk
	# https://technet.microsoft.com/ja-jp/library/hh848708(v=wps.630).aspx
	Write-Output "Initialize Disk"
	Initialize-Disk -PartitionStyle MBR -Number $number -ErrorAction SilentlyContinue
	# Create Partition
	# https://technet.microsoft.com/ja-jp/library/hh848714(v=wps.630).aspx
	Write-Output "Create Partition"
	New-Partition -DiskNumber $number -UseMaximumSize -DriveLetter $usbDriveLetter | Out-Null
	# format Volume
	# https://technet.microsoft.com/en-us/library/hh848665.aspx
	Write-Output "Format Volume"
	Format-Volume -DriveLetter $usbDriveLetter -FileSystem FAT32 -NewFileSystemLabel $label -Force | Out-Null
	# -------------------------------------------------------------------
	# Create USB Installer
	# -------------------------------------------------------------------
	Start-Sleep -Seconds 5
	Write-Output "Start Copy files"
	Copy-Item -Path "$($installDriveLetter):\*" -Destination "$($usbDriveLetter):\" -Recurse
	Write-Output "Finish Copy files"
	# For bootsect.exe there was a thing to fail.
	Write-Output "10 seconds Wait..."
	Start-Sleep -Seconds 10
	# Updates the master boot code
	# https://technet.microsoft.com/ja-jp/library/cc749177(v=ws.10).aspx
	Write-Output "Updates the master boot code"
	cmd.exe /c "$($installDriveLetter):\boot\bootsect.exe /nt60 $($usbDriveLetter):"
	# Eject USB Memory
	Write-Output "10 seconds Wait..."
	Start-Sleep -Second 10
	Write-Output "Eject USB Memory."
	(New-Object -ComObject Shell.Application).NameSpace(17).ParseName("$($usbDriveLetter):\").InvokeVerb("Eject")
	Write-Output "Completed!!!"
	}
	catch{
	Write-Output "Ooops!`nCreate Error!"
	}

view raw New-WinUsbInstaller.ps1 hosted with ❤ by GitHub