diff --git a/4.PVE制作虚拟机模板.md b/4.PVE制作虚拟机模板.md
index b7ac89a..d2718e1 100644
--- a/4.PVE制作虚拟机模板.md
+++ b/4.PVE制作虚拟机模板.md
@@ -282,14 +282,43 @@ sudo nano sources.list
 
 ```bash
 deb https://mirrors.ustc.edu.cn/debian/ bullseye main contrib non-free
-#deb-src https://mirrors.ustc.edu.cn/debian/ bullseye main contrib non-free
+# deb-src https://mirrors.ustc.edu.cn/debian/ bullseye main contrib non-free
 
 deb https://mirrors.ustc.edu.cn/debian/ bullseye-updates main contrib non-free
-#deb-src https://mirrors.ustc.edu.cn/debian/ bullseye-updates main contrib non-free
+# deb-src https://mirrors.ustc.edu.cn/debian/ bullseye-updates main contrib non-free
 
 deb https://mirrors.ustc.edu.cn/debian/ bullseye-backports main contrib non-free
-#deb-src https://mirrors.ustc.edu.cn/debian/ bullseye-backports main contrib non-free
+# deb-src https://mirrors.ustc.edu.cn/debian/ bullseye-backports main contrib non-free
 
 deb https://mirrors.ustc.edu.cn/debian-security/ bullseye-security main contrib non-free
-#deb-src https://mirrors.ustc.edu.cn/debian-security/ bullseye-security main contrib non-free
+# deb-src https://mirrors.ustc.edu.cn/debian-security/ bullseye-security main contrib non-free
 ```
+
+更新软件源的同步内容，并更新系统，逐条执行以下命令：
+
+```bash
+## 清理不必要的包
+sudo apt clean && sudo apt autoclean && sudo apt autoremove --purge
+
+## 更新软件源
+sudo apt update
+
+## 更新系统
+sudo apt dist-upgrade
+```
+
+接下来安装系统必要软件，Adguard Home 将采用 snap 形式安装，逐条执行以下命令：  
+
+```bash
+## 安装系统软件
+sudo apt install qemu-guest-agent zsh git curl htop lm-sensors fail2ban vim tmux unattended-upgrades apt-listchanges powermgmt-base
+
+## 安装网络工具
+sudo apt install iperf iperf3 iftop lsof dnsutils
+
+## 安装 snap
+sudo apt install snapd
+
+## 安装 Adguard Home
+sudo snap install adguard-home
+```
\ No newline at end of file