If Add/Remove gone when updating the system

I brought my One today, I enabled the advanced menu and went into the yum front end where I added and removed some packages which resulted in me loosing the program. After seaching the web for a bit I found what the front end was called.

I do not know if this is the right placed to put this information, but I could not find a wiki on the site to put it in, so to save future users the annoyance of having to re-install as they are at a lost to what happened, I thought I would put my solution here as I could not find one.

First, load up a terminal by either using
Alt + F2 and type xterm
or
Bring up the advanced menu and choose terminal

Then, in the terminal type in
Su root
then enter your password that you chose when stated of
Afterwards type in
yum install pirut
then a load of text will come up and then when prompted put in 'y' and then press enter. It then will install Pirut again, and it will appear on the advanced menu.

Hope this helps someone