1. 在“启用或关闭Windows功能”中启用以下两个选项：Windows虚拟机平台、适用于Linux的Windows子系统。

2. 从Windows Store下载Debian安装

3. 进入Debian命令行，更新下载源 /etc/apt/soures.list

deb http://mirrors.tuna.tsinghua.edu/debian/ bullseye main contrib non-free
deb-src http://mirrors.tuna.tsinghua.edu/debian/ bullseye main contrib non-free
deb http://mirrors.tuna.tsinghua.edu/debian/ bullseye-updates main contrib non-free
deb-src http://mirrors.tuna.tsinghua.edu/debian/ bullseye-updates main contrib non-free
deb http://mirrors.tuna.tsinghua.edu/debian/ bullseye-backports main contrib non-free
deb-src http://mirrors.tuna.tsinghua.edu/debian/ bullseye-backports main contrib non-free
deb http://mirrors.tuna.tsinghua.edu/debian-security bullseye-security main contrib non-free
deb-src http://mirrors.tuna.tsinghua.edu/debian-security bullseye-security main contrib non-free

4. sudo apt update

5. sudo apt install xfce4

6. sudo apt install xfce4-session

7. sudo startxfce4

界面：

如果下载文件总是失败，可以先关掉Windows的防火墙