If you need more than just copy-paste then you can find all Windows keyboard shortcuts here:

 

Important Windows system key combinations

To do this Press
Help F1
Open Start Menu CTRL + ESC (or WINDOWS Logo)
Switch between open programs ALT+TAB
Quit program ALT+F4
Delete item permanently SHIFT+DELETE
Lock the computer
(without using CTRL+ALT+DELETE)
Windows Logo+L

Windows Control key combinations

To do this Press
Copy CTRL+C
Cut CTRL+X
Paste CTRL+V
Undo CTRL+Z
Re-Undo CRTL+Y
Bold CTRL+B
Underline CTRL+U
Italic CTRL+Y

 

General keyboard-only commands

To do this Press
Start Windows Help F1
Activate menu bar options F10
Open a shortcut menu for the selected item
(this is the same as right-clicking an object
SHIFT+F10
Open the Start menu
(use the ARROW keys to select an item)
CTRL+ESC
Select the Start button
(press TAB to select the taskbar or press SHIFT+F10 for a context menu)
CTRL+ESC or ESC
Open Windows Task Manager CTRL+SHIFT+ESC
Open drop-down list box ALT+DOWN ARROW
Switch to another running program hold ALT press TAB to cycle through the programs
Bypass the automatic-run feature while inserting a CD hold down SHIFT
Display the main window’s System menu ALT+SPACE
Display the Multiple Document Interface (MDI) child window’s System menu ALT+-
Switch to the next child window of a MDI program CTRL+TAB
Show Menu shortcuts in office programs ALT
Select menu in office program ALT+ underlined or boxed letter
Close the current window ALT+W or ALT+F4
Closes the MDI window CTRL+F4
Switch between multiple windows in the same program ALT+F6

Shell objects and general folder/Windows Explorer keyboard only shortcuts

For selected object:

To do this Press
Rename object F2
Find all files F3
Cut CTRL+X
Copy CTRL+C
Paste CTRL+V
Delete selection immediately, w/o moving the item to the Recycle Bin SHIFT+DELETE
Open the properties for the selected object ALT+ENTER
Move through the property tabs CTRL+TAB/CTRL+SHIFT+TAB

Mouse click/keyboard combinations for shell objects and Windows explorer

To do this Press
Display a shortcut menu containing alternative commands SHIFT+right click
Run the alternate default command (the second item on the menu) SHIFT+double click
Display properties ALT+double click
Delete an item immediately without placing it in the Recycle Bin SHIFT+DELETE

 

General folder/shortcut control

To do this Press
Select the Go To A Different Folder box and moves down the entries in the box (if the toolbar is active in Windows Explorer) F4
Refresh current window F5
Move among panes in Windows Explorer (forward) F6 or Tab
Move among panes in Windows Explorer (backward) hold SHIFT + press TAB
Undo the last command CTRL+Z
RE-undo CTRL+Y
Select all items in current window CTRL+A
Switch to the parent folder BACKSPACE

 

Windows Explorer tree control

To do this Press
Expand everything under the current selection Numeric Keypad *
Expand the current selection Numeric Keypad +
Collapse the current selection Numeric Keypad –
Expand the current selection if it is not expanded, otherwise goes to the first child RIGHT ARROW
Collapse the current selection if it is expanded, otherwise goes to the parent LEFT ARROW

 

Accessibility shortcuts

To do this Press
Toggle Sticky Keys SHIFT five times
Toggle Filter Keys hold down SHIFT for 8 seconds
Toggle Toggle Keys hold down NUM LOCK for 5 seconds
Toggle Mouse Keys left ALT + SHIFT + NUM LOCK
Toggle high contrast left ALT + left SHIFT + PRINT SCREEN

 

Windows Logo Combinations

To do this Press
Open Start menu WINDOWS LOGO
Run dialog box WINDOWS LOGO + R
Minimize all WINDOWS LOGO + M
Undo Minimize all SHIF + WINDOWS LOGO + M
Open  Windows Explorer WINDOWS LOGO +E
Find files and folders WINDOWS LOGO + F
Display Desktop (minimizes all open windows) WINDOWS LOGO +D

 

Dialog box keyboard commands

To do this Press
Move to the next control in the dialog box TAB
Move to the previous control in the dialog box SHIFT + TAB
click the button (if the current control is a button) SPACE or ENTER
toggle the check box (if current control is check box) SPACE
select option (if current control is option) SPACE
Cancel (as in clicking cancel button) ESC
Move to corresponding menu entry ALT + underlined or boxed letter

 

 

Source: http://support.microsoft.com/kb/126449