Display and Use Windows in Ms-Word

ALT+TAB
Switch to the next window
ALT+SHIFT+TAB
Switch to the previous window
CTRL+W or CTRL+F4
Close the active window
CTRL+F5
Restore the size of the active window after you've maximized it
F6
Move to a task pane from another pane in the program window (clockwise direction). You may need to press F6 more than once.
Note If pressing F6 doesn't display the task pane you want, try pressing ALT to place focus on the menu bar, and then pressing CTRL+TAB to move to the task pane.
SHIFT+F6
Move to a pane from another pane in the program window (counterclockwise direction)
CTRL+F6
When more than one window is open, switch to the next window
CTRL+SHIFT+F6
Switch to the previous window
CTRL+F7
When a document window is not maximized, performs the Move command (on the Control menu for the window). Use the arrow keys to move the window, and, when finished, press ESC.
CTRL+F8
When a document window is not maximized, performs the Size command (on the Control menu for the window). Use the arrow keys to resize the window, and, when finished, press ESC.
CTRL+F9
Minimize a window to an icon (works only for some Microsoft Office programs)
CTRL+F10
Maximize or restore a selected window
PRINT SCREEN
Copy a picture of the screen to the Clipboard
ALT+PRINT SCREEN
Copy a picture of the selected window to the Clipboard