diff --git a/static/app.js b/static/app.js
index 7fa7e0f..bd8043e 100644
--- a/static/app.js
+++ b/static/app.js
@@ -5,6 +5,7 @@ document.addEventListener('DOMContentLoaded', () => {
     const portInput = document.getElementById('port');
     const ufwCmd = document.getElementById('ufw-cmd');
     const iptablesCmd = document.getElementById('iptables-cmd');
+    const winCmd = document.getElementById('win-cmd');
     const loginOverlay = document.getElementById('login-overlay');
     const loginForm = document.getElementById('login-form');
     const loginError = document.getElementById('login-error');
@@ -86,11 +87,12 @@ document.addEventListener('DOMContentLoaded', () => {
     });
 
     const updateFirewallCmds = () => {
-        if (!ufwCmd || !iptablesCmd) return;
+        if (!ufwCmd || !iptablesCmd || !winCmd) return;
         const port = portInput.value || '4646';
         const hostIp = config.firewall_host_ip || window.location.hostname;
         ufwCmd.textContent = `sudo ufw allow from ${hostIp} to any port ${port} proto tcp`;
         iptablesCmd.textContent = `sudo iptables -I INPUT -p tcp -s ${hostIp} --dport ${port} -j ACCEPT`;
+        winCmd.textContent = `New-NetFirewallRule -DisplayName "XIVLauncher OTP" -Direction Inbound -RemoteAddress ${hostIp} -LocalPort ${port} -Protocol TCP -Action Allow`;
     };
 
     const fetchConfig = async () => {
diff --git a/static/index.html b/static/index.html
index 0a0dfd9..af87ca1 100644
--- a/static/index.html
+++ b/static/index.html
@@ -191,6 +191,15 @@
                     </button>
                 </div>
             </div>
+            <div class="code-block">
+                <span class="code-label">Windows (PowerShell)</span>
+                <div class="code-wrapper">
+                    <code id="win-cmd">New-NetFirewallRule -DisplayName "XIVLauncher OTP" -Direction Inbound -RemoteAddress localhost -LocalPort 4646 -Protocol TCP -Action Allow</code>
+                    <button class="btn-copy" onclick="copyToClipboard('win-cmd')" title="Copy to clipboard">
+                        <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg>
+                    </button>
+                </div>
+            </div>
         </div>
     </div>