Following are the keyboard windows 7 shortcuts.
1. Windows Key + Tab = Aero
2. Windows Key + E =Windows Explorer is launched.
3. Windows Key + L = Lock Computer
4. Windows Key + U = Ease of Access
5. Windows Key + D = Show/Hide Desktop
6. Windows Key + Up = Maximize Current Window
7. Windows Key + P = Projector
8. Windows Key + T = Cycle Super Taskbar Items
9. Windows Key + S = OneNote Screen Clipping Tool
10. Windows Key + M = Minimize All Windows
11. Windows Key + R = Run Command is launched.
12. Windows Key + F = Search
13. Windows Key + X = Mobility Center
14. Windows Key + Down = Restore Down / Minimize Current Windows
15. Windows Key + Left = Tile Current Window to the Left
16. Windows Key + Right = Tile Current Windows to the Right
17. Windows Key + # = Quick launch
18. Windows Key + = = Magnifier
19. Alt + Up = Go up one level
20. Alt + Left/ Right = Back/ Forward