An easy way to get a screenshot in Windows:
1 Go to Start (the window icon at the bottom left corner of the screen)
2) Type Snipping
3)You'll see the Snipping Tool appear on top - click on it
4) Your screen will turn opaque and your mouse cursor will turn into a cross.
5) Select with your mouse your whole screen (click and hold on the upper left corner and go all the way to the bottom right corner, then release the mouse)
6) Save the file to your desktop
7) Post file