I installed "Kubuntu Plasma Desktop/Netbook system" from the ubuntu software system to try it out. I prefer Unity and want to remove Kubuntu.  I uninstalled from the Ubuntu software center, but it hasn't worked. During boot I get "Kubuntu" on the screen and not "Ubuntu", also I can log in into Kubuntu and it is working fine.  So how can I remove Kubuntu and all files that came with it?  When trying sudo apt-get autoremove kubuntu-desktop I get this message: Package 'kubuntu-desktop' is not installed, so not removed    Here is my terminal output after trying the commands sudo apt-get install aptitude and sudo aptitude remove '?and(?depends(?exact-name(kubuntu-desktop)),?not(?depends(?exact-name(ubuntu-desktop))))':  darren@darren-K52Jr:~$ sudo apt-get install aptitude [sudo] password for darren:  Reading package lists... Done Building dependency tree        Reading state information... Done aptitude is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded. darren@darren-K52Jr:~$ sudo aptitude remove '?and(?depends(?exact-name(kubuntu-desktop)),?not(?depends(?exact-name(ubuntu-desktop))))' No packages will be installed, upgraded, or removed. 0 packages upgraded, 0 newly installed, 0 to remove and 18 not upgraded. Need to get 0 B of archives. After unpacking 0 B will be used.  darren@darren-K52Jr:~$     Using sudo apt-get --purge remove kubuntu-desktop, sudo apt-get autoremove and run sudo apt-get autoclean I get these result:  darren@darren-K52Jr:~$ sudo apt-get --purge remove kubuntu-desktop [sudo] password for darren:  Reading package lists... Done Building dependency tree        Reading state information... Done Package 'kubuntu-desktop' is not installed, so not removed 0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded. darren@darren-K52Jr:~$ ^C darren@darren-K52Jr:~$ sudo apt-get autoremove Reading package lists... Done Building dependency tree        Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded. darren@darren-K52Jr:~$ sudo apt-get autoclean Reading package lists... Done Building dependency tree        Reading state information... Done Del python-imaging 1.1.7+2.0.0-1ubuntu1.1 [347 kB] Del python-imaging-compat 1.1.7+2.0.0-1ubuntu1.1 [5,410 B] Del libwhoopsie0 0.2.24.1.2 [7,350 B] Del ubuntu-tweak 0.8.7-0~bzr1993+20140421~ubuntu13.10.1 [994 kB] Del python3-distupgrade 1:0.205.6 [136 kB] Del numix-icon-theme 0.3+139~201404162022~ubuntu13.10.1 [3,431 kB] Del unity 7.2.0+14.04.20140423-0ubuntu1.1 [1,437 kB] Del unity-services 7.2.0+14.04.20140423-0ubuntu1.1 [29.3 kB] Del whoopsie 0.2.24.1.2 [26.6 kB] Del libcurl3 7.32.0-1ubuntu1.4 [198 kB] Del ubuntu-release-upgrader-core 1:0.205.6 [24.1 kB] Del flashplugin-installer 11.2.202.350ubuntu0.13.10.1 [6,932 B] Del libunity-core-6.0-9 7.2.0+14.04.20140423-0ubuntu1.1 [447 kB] Del numix-gtk-theme 2.2+294~201404131947~ubuntu13.10.1 [41.5 kB] Del libcurl3-gnutls 7.32.0-1ubuntu1.4 [189 kB] Del libsnmp30 5.7.2~dfsg-8ubuntu1.1 [1,322 kB] Del libsnmp-base 5.7.2~dfsg-8ubuntu1.1 [235 kB] Del ubuntu-release-upgrader-gtk 1:0.205.6 [10.5 kB] darren@darren-K52Jr:~$      Results for command sudo aptitude search '?depends(?exact-name(kubuntu-desktop)':  darren@darren-K52Jr:~$ sudo aptitude search '?depends(?exact-name(kubuntu-desktop)' [sudo] password for darren:  E: Match pattern ends unexpectedly (expected ')'). darren@darren-K52Jr:~$
I installed kubuntu-desktop just to experiment with its interface.  Then I decided to remove and did the traditional apt-get purge and autoremove but it seems elements of kubuntu are still there. For example interface elements, scrollbars, bootscreen etc are still there.  Is there any method I can completely remove without installing a fresh copy of ubuntu?
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