diff --git a/setup-windows.ps1 b/setup-windows.ps1
new file mode 100644
index 0000000..ce54d37
--- /dev/null
+++ b/setup-windows.ps1
@@ -0,0 +1,123 @@
+#Requires -Version 5.1
+<#!
+Chatterbox TTS - Windows setup script
+
+What it does:
+- Creates a Python virtual environment in .venv (if missing)
+- Upgrades pip
+- Installs dependencies from backend/requirements.txt and requirements.txt
+- Creates a default .env with sensible ports if not present
+- Launches start_servers.py using the venv's Python
+
+Usage:
+  - Right-click this file and "Run with PowerShell" OR from PowerShell:
+      ./setup-windows.ps1
+  - Optional flags:
+      -NoInstall   -> Skip installing dependencies (just start servers)
+      -NoStart     -> Prepare env but do not start servers
+
+Notes:
+- You may need to allow script execution once:
+    Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
+- Press Ctrl+C in the console to stop both servers.
+!#>
+
+param(
+  [switch]$NoInstall,
+  [switch]$NoStart
+)
+
+$ErrorActionPreference = 'Stop'
+
+function Write-Info($msg) { Write-Host "[INFO] $msg" -ForegroundColor Cyan }
+function Write-Ok($msg)   { Write-Host "[ OK ] $msg" -ForegroundColor Green }
+function Write-Warn($msg) { Write-Host "[WARN] $msg" -ForegroundColor Yellow }
+function Write-Err($msg)  { Write-Host "[FAIL] $msg" -ForegroundColor Red }
+
+$root = Split-Path -Parent $MyInvocation.MyCommand.Path
+Set-Location $root
+
+$venvDir = Join-Path $root ".venv"
+$venvPython = Join-Path $venvDir "Scripts/python.exe"
+
+# 1) Ensure Python available
+function Get-BasePython {
+  try {
+    $pyExe = (Get-Command py -ErrorAction SilentlyContinue)
+    if ($pyExe) { return 'py -3' }
+  } catch { }
+  try {
+    $pyExe = (Get-Command python -ErrorAction SilentlyContinue)
+    if ($pyExe) { return 'python' }
+  } catch { }
+  throw "Python not found. Please install Python 3.x and add it to PATH."
+}
+
+# 2) Create venv if missing
+if (-not (Test-Path $venvPython)) {
+  Write-Info "Creating virtual environment in .venv"
+  $basePy = Get-BasePython
+  if ($basePy -eq 'py -3') {
+    & py -3 -m venv .venv
+  } else {
+    & python -m venv .venv
+  }
+  Write-Ok "Virtual environment created"
+} else {
+  Write-Info "Using existing virtual environment: $venvDir"
+}
+
+if (-not (Test-Path $venvPython)) {
+  throw ".venv python not found at $venvPython"
+}
+
+# 3) Install dependencies
+if (-not $NoInstall) {
+  Write-Info "Upgrading pip"
+  & $venvPython -m pip install --upgrade pip
+
+  # Backend requirements
+  $backendReq = Join-Path $root 'backend/requirements.txt'
+  if (Test-Path $backendReq) {
+    Write-Info "Installing backend requirements"
+    & $venvPython -m pip install -r $backendReq
+  } else {
+    Write-Warn "backend/requirements.txt not found"
+  }
+
+  # Root requirements (optional frontend / project libs)
+  $rootReq = Join-Path $root 'requirements.txt'
+  if (Test-Path $rootReq) {
+    Write-Info "Installing root requirements"
+    & $venvPython -m pip install -r $rootReq
+  } else {
+    Write-Warn "requirements.txt not found at repo root"
+  }
+
+  Write-Ok "Dependency installation complete"
+}
+
+# 4) Ensure .env exists with sensible defaults
+$envPath = Join-Path $root '.env'
+if (-not (Test-Path $envPath)) {
+  Write-Info "Creating default .env"
+  @(
+    'BACKEND_PORT=8000',
+    'BACKEND_HOST=127.0.0.1',
+    'FRONTEND_PORT=8001',
+    'FRONTEND_HOST=127.0.0.1'
+  ) -join "`n" | Out-File -FilePath $envPath -Encoding utf8 -Force
+  Write-Ok ".env created"
+} else {
+  Write-Info ".env already exists; leaving as-is"
+}
+
+# 5) Start servers
+if ($NoStart) {
+  Write-Info "-NoStart specified; setup complete. You can start later with:" 
+  Write-Host "  `"$venvPython`" `"$root\start_servers.py`"" -ForegroundColor Gray
+  exit 0
+}
+
+Write-Info "Starting servers via start_servers.py"
+& $venvPython "$root/start_servers.py"