Microsoft has introduced several new keyboard  shortcuts, hot keys to make easier navigation and usage of Windows 7. Here’s a few keyboard shortcut keys  that are new in Windows 7.

Windows + ↑ (Up Arrow) - Maximize window

Windows + ← (Left Arrow) - Snap window to left side covering half of desktop space. Continue pressing the keyboard shortcut will rotate the window between snap to left, snap to right and restore to normal position.

Windows + → (Right Arrow) - Snap window to right side covering half of desktop space. Continue pressing the keyboard shortcut will rotate the window between snap to left, snap to right and restore to normal position.

Windows + ↓ (Down Arrow) - Minimize the window. Restore to normal size and position if the window is currently maximized.