I have a very small window, Free Screen Recorder, and it's somewhere off in the boonies. Using the ALT+Space method doesn't work. I tried it and I got the move cursor but moving the mouse doesn't drag the window. It's completely off the screen, so clicking once I have the move cursor only results in me clicking on either the desktop or the taskbar and doesn't grab the window I want to move.
I finally found something that did work before I finished writing this. Alt+Space brought up the context menu and much to my delight there was a maximize button. I maximized the window, then moved and resized it with the mouse after that.
Cascade windows was much easier than going to a search engine to try to find some obscure method in a forum and performing some voodoo ritual to try to get the window back. Please bring back Cascade Windows the the other very useful options to the task bar that were removed for some unknown reason. Let me guess... "to make it easier". If I wanted easy, I would have bought a Mac.