Zorin freezes from time to time

[zenzen]

@Ngungu

And this is where I am now: it does not boot into the DE anymore, instead it stays in a black screen with white text asking for my login, followed by my password. After that it stays in that screen, which is like a command line screen.

Now, there is probably a way to get into the DE unless I screwed up something.

It looks like you've removed the desktop environment entirely so you are left with a non-graphical environment, thus the shell interface.

Personally I don't have much experience once you've reached this point, and my first instinct would be to re-install from scratch. On the other hand, there's very little you can break at this point so you might as well try to install the DE yourself. If nothing else, it's a good learning opportunity and you can always fallback to installing from scratch using an external USB drive.

Btw, if you have any important documents or files this would be a good time to copy them to an external drive.

As @Ponce-De-Leon suggested this should do it.

sudo apt install zorin-os-desktop
sudo dpkg --configure -a

Based on previous threads the desktop package should include gdm3 but you might need to configure it. Run these lines one at the time, and reboot by typing reboot at the shell.