really new

[detached]

i just began C++ and the tutorial says to write the code (Hello World) however, where do I write this code to make it work, (Windows, C:, remote hard drive)? which compiler is best?

[vlad from moscow]

The simplest way is to try to write code at www.ideone.com. There is on-line a C++ compiler.

[Catfish4]

Another one is:
http://liveworkspace.org/

which compiler is best?

I have the audacity to suggest Bloodshed Dev-C++, if all you want is a small free IDE+compiler to help you learn C++98.

For more serious things, you should probably go with Visual Studio 2010 or 2012.
(The Express editions are free but you need to register, for free, after 30 days.)
http://www.microsoft.com/visualstudio/eng#products/visual-studio-2010-express

Also for "more serious things", if you don't care about an IDE for your compiler, look into MinGW.
http://nuwen.net/mingw.html

If you're not on Windows, but Linux or something else, the choices are obvious: GCC and Clang.