This list is fantastic! I thought I knew all the Windows hotkeys, but I stand corrected. WIN-L is a new one to me, and very helpful at work when called by the boss.
Two more hotkey combos that don't seem to appear within the first 8 pages is
ALT-DownArrow and
ALT-UpArrow. When the current selection is a drop-down list box,
ALT-DownArrow opens the list, which is then navigable with the Up/Down keys.
ALT-UpArrow closes the list, and in most instances the drop-down field remains active and the Up/Down keys will continue moving through the list selections.
And although it's not exactly a hotkey, another useful keystroke is ANY letter or number key when a drop-down box is selected. It will go to the first selection that begins with that letter/number. Repeating the keystroke will scroll through the selections in the list beginning with the same letter/number. When the final selection is reached, it will search from the beginning. I found it much easier, since moving to Texas, to tab to the "state" field and hit T twice instead of clicking open the drop-down, scrolling to *near* the bottom, finding TX, and then clicking it.