[Can't install the nc launcher!]

I installed the nc launcher in C first,after i saw that i don't have enough space i tryied to uninstalled it but i couldn't i had to remove all the folders,after doing that i started to install again the launcher but i didn't worked again  idk why i restarted the pc watched to see if i have any folders left, but nothing ... i don't understand!help!

Spoiler

https://imgur.com/3pewLXr