Change Desktop from LXDE to XFCE

Steps

  1. $ sudo apt update
  2. $ sudo apt install task-xfce-desktop
  3. Log out of the current session or restart the system
  4. From the login screen, click the gear icon, select the desired desktop environment and log in to your user account as usual
  5. Remove LXDE with
    $ sudo tasksel purge lxde-desktop
  6. Remove LXDE packages
    apt-get purge PCManFM
    apt-get purge lxterminal
    apt-get purge lxtask
    apt-get purge lxpolkit
    apt-get purge lxrandr
    apt-get purge lxde*
    apt autoremove