As I was using my Windows 10 desktop this past month I stumbled across another feature that I didn’t know was there. In the very left hand bottom of the desktop there is a nearly invisible button that looks like a vertical line. Clicking it once minimizes all the windows on your desktop. Clicking it again restores them. I’m not sure how long this has been around as I don’t have a Windows 7 desktop to check anymore but I might not be the only one that didn’t know it was there.