Create a Shortcut to Terminal on Kubuntu

Go to Applications/Settings/Xfce4 Settings Manager > Keyboard, under Shortcuts to Applications tab, Add a new entry: put the following command

xfce4-terminal

I used

Ctrl+Alt+T

as the shortcut.

Remove Keyring Dialogue on Ubuntu/Kubuntu

One needs to use Passwords and Encryption Keys menu, if it is not found under Applications/Accesories, then install it from terminal

sudo apt-get install seahorse

After the installation, open the menu, remove Default line under Password tab. At next poping-up dialogue, put empty password.

Kubuntu: Restoring Missing Panel

Kubuntu serves well on old-fashioned notebooks, as it is a light-weight version of Ubuntu.

To restore the missed top bar and bottom bar, press Alt+F2 (Run program) to open a dialogue, type:

xfce4-panel

It shall come back.