Win Key Shortcuts

+m (minimises all windows)
+d (displays the desktop)
+e (opens expolrer)
+r (launches run dialogue)
+pause/break (opens system properties)
+u (opens Ease of Use Center)
+t (cycles programs on taskbar)
+tab (activates Flip-3D)
+g (cycles through Gadgets)
+spacebar (brings gadgets to the front)
+x (cycles through the Mobility Center)
+a (all programs)
+F8 (shutdown computer)
+F6 (restarts computer)
+F4 (log off)
+f (search)
+t (quick launch)

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Windows Vista lets you use hotkeys for the first 10 items in the Quick Launch menu. These hotkeys are assigned automatically, so there's no need to do anything other than understand how they work.

For each icon in the Quick launch bar, the hotkey + number is assigned. These are assigned from left to right, 1-9 (and 0 for 10).