Can you explain it I am so shaky I can't even read correctly

It doesn't say no is found it brings my folders everything back but on calculator it says install os
After deleting is do I unplug as well as close link software or just close link software because it says no os on my calc but it hasall the files on my software

Dude it is at operating system not found and it won't recognize on my computer help!!!!
Sorry for double posting but I need help fast ahhhhh!!!

Wait. Is this ALL done while your calculator is plugged In? Also do you mean nlaunch. Tcc AND nlaunch.tco or do you mean nlaunch. Tcc OR nlaunch.tco

Also is this right delete os (still in maintainence menu) drag the two files ( the. Tcc and. Tco) in? So i mean to say how can you transfer those two files after you deleted the os.?

So I will tnoc Once more when I go home...I am not sure what you mean by for instance and could you answer the last question a little les complexly;  sorry I don't understand what you are trying to say.

And after I make the nlaunch folder in the same level as mylib what should come up when I try to transfer the phoenix file in? An updating is process? Or what? (Sorry if that sounded mean I mean to say it with a humble and sincere tone)

Edit:also can you check 3 or 4 comments up(the making phoenix file) if the process was right?

OK so I did what the link said and it was a .tcc but I removed the boot2 and changed it to phoenix.tns and it is a tns file but it did tell me I can change the content if I rename and I pressed yes. If there was something wrong in what I did please tell me what and how to fix and if I did it now please tell me what is next.
I am not going to put anything on my calc yet until I understand fully and make my own modified instructions so if you guys can tell me the next
step no rush if you guys are sleeping thanks for even helping me

Edit: also i am not sure where to put phoenix in. The only place i can make a folder is IN the documents folder and maybe the other folders inside the documents folder, but i can't make the nlaunch folder on the same level of documents so i am not sure what the read me is saying to put it in the root directory. Is the root directory just inside the document folder? Just a btw: i am using the ti-nspire computer link software

I thought it was phoenix.tns