what do I need to do to render sprites in windows using C++ and what do I need to do to implement some form of hit-detection in windows. I am a beginner C++ coder.

I am trying to render bitmap sprites on windows(like images).Also how to calculate basic Collision between the sprites.

Since there's not much info to go on, I'll assume you're just trying to display a bitmap "sprite" inside a window...and by window, I mean the background of a win32 application. I'll also assume that you're not using any form of library or "engine" and you're looking for win32 API calls.

You'll want to look at BitBlt(), for displaying the bitmap. A pretty cut-and-dry basic tutorial

As for collision detection, if you're doing it with bitmaps, on a win32 window, you already have all the information you need. You know where your bitmap is being drawn, and you know how wide/tall it is, so figuring out collision should be a matter of saying, does sprite X's dimensions at all overlap with sprite Y's.