Well first, to properly learn C++ it takes months, so you're going to have to be willing to put in the time. C++ isn't scripting - its programming. You make your own programs, and if you're more advanced you can make your own software.
If you just need scripts, learning a more simple language would be adequate. I'm no scripting expert, but I'm guessing Javascript is a good start, maybe making Autohotkey scripts (this one may be completely off) would be useful too. You can even make some very basic scripts with windows .bat files.
If you're going for C++, you'll need at least a C++ compiler. One step further is getting an IDE which is like a word processor for programming, which would usually include the compiler. A good free IDE is the one from Bloodshed. Also good is MINGW IDE. You'll have to do some googling. Then, just search for C++ tutorials and follow them. Don't just copy and paste the code, pay attention to the code and you'll be on your way to learning C++ in no time.
But as I said, what you described can be done with very simple languages, you shouldn't go to lengths learning C++ just for that.