General::

Win+UP = Maximize
Win+DOWN = Restore/Minimize
Win+Left = Snap to Left
Win+Right = Snap to Right
Win+Shift+Left = Jump to Left Monitor
Win+Shift+Right = Jump to Right Monitor
Win+Home = Minimize/ Restore all other Windows
Win+T = Focus the first taskbar entry / Pressing again will cycle through them, you can arrow around. Win+Shift+T cycle backward.
Win+Space = Peek at the desktop
Win+G = Bring Gadgets to the top of the Z-order
Win+P = External display options (Mirror, Extend desktop, etc)
Win+X = Mobility Center (Same as vista, but still handy!)
Win+# (# = a number key) = Launches a new instance of the application in the Nth slot on the taskbar. Example: Win+1 Launches first pinned app, Win+2 Launches second, etc.
Win++ = Zoom IN
Win+ - = Zoom OUT

Explorer::

Alt+P = Show/ Hide prewiew pane

Taskbar Modifiers::

Shift+Click on Icon = Open a new instance
Middle Click on Icon = Open a new instance
Ctrl+Shift+Click on Icon = Open a new instance with Admin Privileges
Shift+Right Click on Icon = Show Window Menu (Restore/ Minimize/ Move/ Etc.)
Shift+Right Click on grouped Icon = Menu with restore all/ Minimize All/ Close All, Etc.
Ctrl+Click on grouped Icon = Cycle between the windows (or Tabs) in the group.


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