Hi Tom, I'm not sure if you saw my last reply. Everything is perfect now. I've changed the language back to English and Windows update is working as it should, already installed @100 updates. The reason I used vistalizator and added English is because I bought the laptop in Italy, the operating system was pre installed and they gave me the license but even though I speak Italian I find it silly to use it as my operating system's language, I'm used to English , I wouldn't use anything else, not even my native language so the main reason I used vistalizator is because I didn't wanted to reinstall the operating system just to change the language. Anyway, I already downloaded the EN .iso from microsoft just in case but right now, EVERYTHING is ok and I don't see myself using that .iso this century, lol.
Thanks again guys !