Deleteing a Xubuntu

I'm sorry, but I need to know more about your setup. Did he install Xubuntu over an existing installation or inside a virtual machine (e.g. VMware, VirtualBox, QEMU, etc.), or on a separate partition? What was on the computer before he installed it, and what precisely did he do to it?

Ubuntu was already installed and it's set up so I can choose between using ubuntu or xubuntu when I start my computer up. I don't know exactly what he did because I wasn't around and I don't hear from him enough to find out soon what exactly he did.

Also, I'd just like to point out that Xubuntu is a small, lightweight OS. It takes up substantially less space than regular Ubuntu does, and is also usually faster. It does sacrifice aesthetic appeal to achieve this, though.

Ok, boot into Ubuntu and click System -> Administration -> Partition Editor. Give it your password and describe the window when it finishes loading.

If possible a screenshot would be nice, though I can do without.

It doesn't have partition on it so what else would i click on

Ok... that's odd... can you bring up a terminal (Applications->Accessories->Terminal) and type

gksudo gparted

at the $ prompt?

okay now what?

What does the resulting window (after you give it your password) look like? In particular, I need to know what the list says and looks like.

Which list the one in system - administration? if so it's
authorizations
Hardware drivers
hardware testing
language support
login in window
network
network tools
printing
services
software sources
synaptic package manager
system log
system manager
time and date
update manager
users and groups

I'm sorry, I meant the window you get when you put the command I gave you above into the terminal. It's supposed to ask for your password and then start a partition manager called GParted (I can't do the latter without doing the former). I need to know what the list in that window looks like (the GParted window). If it isn't coming up, please copy and paste the output of

sudo fdisk -l

into a comment (Of course you need to enter your password for that -- it won't show up as you type it, but it is being input with each keystroke)

If that doesn't work, what does

sudo -l

give? If it gives something not including the line

(ALL) ALL

then you may not be allowed to use these commands, which makes exploration quite difficult, I'm afraid. If that last command doesn't give that line, please post what it does give.

it doesn't do anything

Did you press enter after typing or copy/pasting it? It is very unusual for a command to do nothing and exit, and certainly not those commands. Did it do anything at all, even just a "command not found" or "<user> is not in the sudoers file..."?

oops, wrong button

LP thinks I answered your question, but we haven't finished diagnosing it. There's a button under the comment window saying "I still need an answer", please use that when replying

Usage: fdisk [-l] [-b SSZ] [-u] device
E.g.: fdisk /dev/hda (for the first IDE disk)
  or: fdisk /dev/sdc (for the third SCSI disk)
  or: fdisk /dev/eda (for the first PS/2 ESDI drive)
  or: fdisk /dev/rd/c0d0 or: fdisk /dev/ida/c0d0 (for RAID devices)

did you remember the
-l
part? The full command is
sudo fdisk -l
Also, what happened to gparted?

It's getting late. I'd recommend you just ask your boyfriend to undo the changes at this point, since I'm not staying up all night waiting for a reply. If you would like more help, please reopen this question. I will subscribe to it so that I can help you later if you wish. Goodnight.

Yes I did that and it didn't do what it was supposed to i guess....thanks for the attempt at help.