hmmm... notepad++ is a fine text editor, but is not a compiler.
If you are too new i'd suggest looking for the MS-VC compiler. It comes with an integrated editor and is fairly straightforward to use and fast.
If you want to stick to notepad++, i suggest the mingw32 compiler, but that would require of your side:
a) Use of command line build tools
b) Configuring the bin and include paths manually.
Or, you can get Bloodshed Dev-Cpp which is an IDE on top of mingw32 with the dirty details covered up, but it's editor is pretty poor.
All the above compilers can be downloaded for free.