How to change PHD sponsored by Marie Skłodowska-Curie Fellowship I come from an EU country, and I am doing a PHD funded by a Marie Skłodowska-Curie Innovative Training Network (ITN).  

The problem is that, after almost a year spent here, I realize that I do not like my subject, nor the professors. I would like to continue my PhD studies, but I need to make a change (professor, subject, maybe country).  

I don't know if it is possible to make such a change, while maintaining the Marie Skłodowska-Curie fellowship.

It is hard to find an answer because I prefer not to talk about this with my professors. Also, I asked a Marie Skłodowska-Curie project secretary, and she only told me that I can quit the PhD any time without any financial consequences for me.

I prefer not to give details about subject, the university, or the names of my professors. Still, feel free to ask me if you need more details and I hope I could make my question clearer thanks to your feedback!

Thank you all!
Since you consider changing supervisors, subject and the place where PhD is carried out, it looks to me that you in fact consider quitting your current PhD and start a new one. You need to check your offer and contract which you signed when you accepted the PhD, but it is very unlikely that you can take this funding with you.

Seeing that you're having difficulties locating the ERC website, it is clear that you were not yourself applying for the funding. I suspect that the University where you are studying applied for ITN and you have got a place in this network. This is technically not your funding, hence you most likely can not take it with you.