Sup, This is my 3rd post.

For long, i have wanted to try the XFCE desktop environment and i eventually decided to install it on my computer.

To install XFCE, i did

sudo apt-get update
sudo apt-get install xfce4

After installing it without errors, i logged out and logged back in using the xfce session.
It looked nice, i played around it, it felt good.

My problem arose when i logged back into my computer later on with gnome, thunar was made my default manager and i didn't like thunar.

I opened up my terminal and checked my current file manager

xdg-mime query default inode/directory 
  
It showed nautilus but thunar was still my default file manager

HOW I FIXED IT

i opened my terminal and removed thunar
sudo apt-get remove thunar

I then tried to access my home folder and got a dioalog box asking to chose a default file manager.

I picked my favorite nautilus and all was weel again. I then installed thunar back.
sudo apt-get install thunar 

Who knows when it might be useful.