Learn CPP – Start with this website first if you’re new to C++. It provides all the basics and installation help.
CPPforSchool – This website provides tutorials, programming challenges, projects you can work on, and papers and quizzes to help you see how much you remember. If you’d like to work with other coders on puzzles and projects, this website is a good place to check out.
CProgramming.com – if you tried the first two and still want another resource, this website provides some basics on both C and C++ and practice problems and quizzes.
Deitel C++ Programming Resource Center – this website is also a good learning resources and it has some tutorials, but it is probably better used as a reference for looking up information on C++.