WINDOWS  BUTTON :

WIN

Start Menu (Toggles)

WIN + BREAK

System Properties

WIN + D

Desktop

WIN + M

Minimize All Windows

WIN + SHIFT + M

Maximize All Minimized Windows

WIN + E

My Computer

WIN + F

Find / Search

CTRL + WIN + F

Find / Search Network Computers

WIN + F1

Windows Help

WIN + R

Run Frame

WIN + U

Three Utilities

WIN + L

Lock System

TASK BUTTON :

Selected Item's Properties