Here are the shortcuts I use over and over again on Windows.
WindowsKey-e – Open Explorer
WindowsKey-l – Lock screen
WindowsKey-r – Open Run dialog
WindowsKey-m – Minimize all windows
WindowsKey-Shift-M – Restore all windows
WindowsKey-d – Toggle between showing the desktop and showing all the windows
WindowsKey-Pause – Show System Properties window (The same window you see when you right click and view properties on My Computer)
Ctrl-Shift-Escape – Launch Task Manager
Windows key + f == Windows search
Windows key + a == select all
Windows key + z == undo
Windows key + p == print
The list goes on…
@elsmob Oh yeah, I use Windows search a fair amount, just forgot to mention it. Haven’t used the others – I usually use their Ctrl counterparts within the application.