Is the visual studio account free ?

So recently i have downloaded the latest free, for students, version of the unity editor including the visual studio package.However a few days ago when i tried to write a script a window popped up saying that the free trial of visual studio has expired and it asked me if i want to make an acount.I am new in all this and do not know is it free? i tried to find out but i could not.If anybody knows pleasd let me know.Thanks in advance

Visual Studio Community is free, it just requires free registration.