diff --git a/README.md b/README.md
index a2f0402..d52ce8b 100644
--- a/README.md
+++ b/README.md
@@ -10,4 +10,13 @@
 
 <h2>Buoc 2:</h2> Vao thu muc /monitor/setup/
 
-<h2>Buoc 3:</h2> Chay file ./setup
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+<h2>Buoc 3:</h2> Chay file ./setup
+<p>---------------------------------------------</p>
+<h2>Cài đặt môi trường cho box chạy Ubuntu Desktop 18.04.</h2>
+<h4> Cài đặt thêm </h4>
+<p>apt-get install rng-tools</p>
+<p>deluser aibox</p>
+<p>nano /etc/lightdm/lightdm.conf.d/11-armbian.conf</p>
+<p>add 2 dòng:</p>
+<p>autologin-user=root</p>
+<p>autologin-user-timeout=0</p>
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