Q:

How to Open all minimized File Explorer windows

Let's say I have Minimized several File Explorers, perhaps by right-clicking an open spot on the taskbar and choosing "Show the Desktop". Now I want to  them all Restored at once. I see no way to Restore them all other than hovering over the taskbar icon and clicking on each window separately.
Any modern version of Windows works like this. I am on Win7 currently.
Basically I would like to add an item to the right-click menu, below "Close all Windows", that says "Open all Windows".
Is there some shortcut I'm missing, or is there a way to add items to the right-click menu? I'm not interested in 3rd party tools, but I can program if someone gives me some clues.
Thanks.
[edit] Windows + D sorta worked. It closes open Windows, and hitting it again restores what it closed. But if you Win+D and then open a program, hitting it again will close that program and only open the same program back up. But question was how to open all the Explorer windows, in the same manner you can close them all, by right-click on the taskbar icon. I want an Open All option on that menu. Essentially, I want to add functionality to the right-click menu.

A:

You can try this:
Press SHIFT, right-click on the group icon and choose Restore all windows

