Added PS1 file

This file will create the USB for Yellow Key

USB_Build.ps1

@@ -0,0 +1,102 @@
+# Copy-FsTx-To-SVI.ps1
+# Run as Administrator
+
+$isAdmin = ([Security.Principal.WindowsPrincipal] `
+    [Security.Principal.WindowsIdentity]::GetCurrent()
+).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
+
+if (-not $isAdmin) {
+    Write-Host "Please run this script as Administrator." -ForegroundColor Red
+    pause
+    exit
+}
+
+$localSource = "C:\FsTx"
+
+if (-not (Test-Path $localSource)) {
+    Write-Host "Source folder not found: $localSource" -ForegroundColor Red
+    pause
+    exit
+}
+
+Write-Host ""
+Write-Host "Choose an option:" -ForegroundColor Cyan
+Write-Host "1. New drive"
+Write-Host "2. Rebuild drive"
+$mode = Read-Host "Enter 1 or 2"
+
+if ($mode -notin @("1", "2")) {
+    Write-Host "Invalid option." -ForegroundColor Red
+    pause
+    exit
+}
+
+Write-Host ""
+Write-Host "Available drives:" -ForegroundColor Cyan
+Get-PSDrive -PSProvider FileSystem | Select-Object Name, Root, Description
+
+Write-Host ""
+$driveLetter = Read-Host "Enter the USB drive letter only, for example E"
+$driveLetter = $driveLetter.TrimEnd(":")
+$usbRoot = "$driveLetter`:\"
+
+$sviDir = Join-Path $usbRoot "System Volume Information"
+$destDir = Join-Path $sviDir "FsTx"
+
+if (-not (Test-Path $usbRoot)) {
+    Write-Host "Drive $usbRoot does not exist." -ForegroundColor Red
+    pause
+    exit
+}
+
+if (-not (Test-Path $sviDir)) {
+    Write-Host "System Volume Information folder not found. Creating it..." -ForegroundColor Yellow
+    New-Item -ItemType Directory -Path $sviDir -Force | Out-Null
+}
+
+Write-Host ""
+Write-Host "Taking ownership of System Volume Information..." -ForegroundColor Cyan
+takeown /F "$sviDir" /R /D Y
+
+Write-Host ""
+Write-Host "Granting Administrators full control..." -ForegroundColor Cyan
+icacls "$sviDir" /grant Administrators:F /T /C
+
+if ($mode -eq "1") {
+    if (Test-Path $destDir) {
+        Write-Host ""
+        Write-Host "FsTx already exists on this drive:" -ForegroundColor Red
+        Write-Host $destDir
+        Write-Host "Use the rebuild option if you want to replace it."
+        pause
+        exit
+    }
+
+    Write-Host ""
+    Write-Host "Copying FsTx from C:\ to System Volume Information..." -ForegroundColor Cyan
+    Copy-Item -Path $localSource -Destination $sviDir -Recurse -Force
+}
+
+if ($mode -eq "2") {
+    if (Test-Path $destDir) {
+        Write-Host ""
+        Write-Host "Removing existing FsTx from System Volume Information..." -ForegroundColor Yellow
+        Remove-Item -Path $destDir -Recurse -Force
+    } else {
+        Write-Host ""
+        Write-Host "No existing FsTx folder found. Continuing with fresh copy..." -ForegroundColor Yellow
+    }
+
+    Write-Host ""
+    Write-Host "Copying fresh FsTx from C:\ to System Volume Information..." -ForegroundColor Cyan
+    Copy-Item -Path $localSource -Destination $sviDir -Recurse -Force
+}
+
+Write-Host ""
+Write-Host "Done." -ForegroundColor Green
+Write-Host "Source:"
+Write-Host "  $localSource"
+Write-Host "Destination:"
+Write-Host "  $destDir"
+
+pause