Ubuntu: I would like to try kde (kubuntu) without losing any data and a possibility to revert back


I have an old PC having 2 GB of RAM and an old dual core Intel processor (2.5 GHz) and I believe it has an integrated intel graphics chip of 256 MB. So recently I installed Ubuntu 16.04 LTS and loved it and have been using it a lot. But lately it sometimes stops responding and crashes and I have to use the console (ctrl alt f4) to reboot. I read KDE is less demanding than Unity so I am thinking of giving it a shot but in case if I don't like it, I want to have an option of reverting back too.

PS: The PC is on dual boot with perhaps Windows Vista (or 7 maybe) which I don't use. It's on a separate partition and GRUB asks me to choose the OS. EDIT: And one more thing, I earlier used 15.10 Ubuntu 64 bit(my computer does support 64 bit)and it seemed to lag significantly especially when doing graphical stuff like changing backgrounds or themes. Later on I upgraded to LTS 16.04 but chose 32 bit and it is slightly better. So was the change due to coming to 32 bit or using the LTS?


Try the Ubuntu flavours live without installing, booted from a USB drive or DVD disk. In a USB drive you can also create a persistent live system or even an installed system (installed like into an internal drive), but it is often enough with a live or persistent live system for testing.

This way you can easily try several flavours of Ubuntu without touching the internal drive. And after testing you decide to keep standard Ubuntu or switch to one of the flavours with another desktop environment.

See the following link for more details,

Try Ubuntu (Kubuntu, Lubuntu, Xubuntu, ...) before installing it

Edit: My guess is that Lubuntu, Ubuntu MATE or Xubuntu will be your choice after testing.


KDE is using about 700MB of RAM. If you want something faster try Xubuntu or Lubuntu.

If you just want the Desktop environment, then install it with sudo apt install kubuntu-desktop. If you won´t like it, you can remove it with tasksel

sudo apt-get install tasksel  sudo tasksel  

find Kubuntu desktop in the list and remove its selection. Read and confirm the prompts. After this run sudo apt-get autoremove

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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