I just installed Lubuntu today on an HP Stream laptop. At the drives setup page there was no option to "Erase disk" so I manually partitioned swap, UEFI, and the remaining space as an ext4 mounted to /. I finished the install. While ejecting a USB drive that I used to transfer an image, I noticed that my UEFI partition and main partition were listed as "Removable Media" in the taskbar widget. Is there any way to set the drives to non-removable in Terminal so they don't appear in the widget?

This is my first experience installing any Linux distro.