Windows has a feature to arrange a subset of program windows so that they are side-by-side.

On the Windows Taskbar (the big thing at the bottom that has a button for every open program) take the mouse and

1 - Hold [Ctrl] key down and click each program that you want to arrange

2 - Once you are finished CTRL-Clicking on the programs, release the [Ctrl] key and then Right-Click on one of program buttons.

3 - Choose either Tile Vertically or Tile Horizontally

This doesn't always work 100%. Sometimes you have to minimize all windows first as some unselected program interferes with the screen layout.