first of all welcome to the forums
you remind me of myself when i got my nspire cx
so i will willingly help you
----the links given are direct links to the place you need to go so no one will make spin in circles
first of all there are two options:
1. have os 3.1 and 3.2 together
2. have only one os
first one is better since you can play gameboy color, advance etc games while play games like minecraft craft 2d
the other one is also good
if you want both 3.1 and 3.2 then download the file from
here and follow instructions in the readme.
if you want to keep only 3.1
do this
hold [doc][ee][enter] together and while holding them press the reset button on the back. from the menu that comes press 2 then 1
when the install os comes put
this file onto the calculator.
then comes the hacking part
get the files in this folder according to the readme
https://tiplanet.org/forum/archives_voir.php?id=3891por from
hereas far the student software goes it is like your windows explorer or finder(mac) but only allows TI nspire documents
hope this helps