Windows 7 is the largest used operating system in the world and if you want to work fast from your friends the below mentioned window keys can help you out. These shortcut keys are the combination of two or more keys through which you can operate the applications on your windows with out using the mouse.

Complete list of windows 7 shortcut keys:

Ease of Access keyboard shortcuts

Left Alt + Left Shift + PrtScn (or PrtScn): Turn High Contrast on or off

Left Alt + Left Shift + Num Lock: Turn Mouse Keys on or off

Shift five times: Turn Sticky Keys on or off

Num Lock for five seconds: Turn Toggle Keys on or off
Windows logo key + U: Open the Ease of Access Center

General keyboard shortcuts

F1: Display Help
Ctrl + C (or Ctrl + Insert): Copy the selected item
Ctrl + X: Cut the selected item
Ctrl + V (or Shift + Insert): Paste the selected item
Ctrl + Z: Undo an action
Ctrl + Y: Redo an action
Delete (or Ctrl + D): Delete the selected item and move it to the Recycle Bin
Shift + Delete: Delete the selected item without moving it to the Recycle Bin first
F2: Rename the selected item
Ctrl + Right Arrow: Move the cursor to the beginning of the next word
Ctrl + Left Arrow: Move the cursor to the beginning of the previous word
Ctrl + Down Arrow: Move the cursor to the beginning of the next paragraph
Ctrl + Up Arrow: Move the cursor to the beginning of the previous paragraph
Ctrl + Shift with an arrow key: Select a block of text
Shift + any arrow key: Select more than one item in a window or on the desktop, or select text within a document
Ctrl + any arrow key + Spacebar: Select multiple individual items in a window or on the desktop
Ctrl + A: Select all items in a document or window
F3: Search for a file or folder
Alt + Enter: Display properties for the selected item
Alt + F4: Close the active item, or exit the active program
Alt + Spacebar: Open the shortcut menu for the active window
Ctrl + F4: Close the active document (in programs that allow you to have multiple documents open simultaneously)
Alt + Tab: Switch between open items
Ctrl + Alt + Tab: Use the arrow keys to switch between open items
Ctrl + Mouse scroll wheel: Change the size of icons on the desktop
Windows logo key + Tab: Cycle through programs on the taskbar by using Aero Flip 3-D
Ctrl+ Windows logo key + Tab: Use the arrow keys to cycle through programs on the taskbar by using Aero Flip 3-D
Alt + Esc: Cycle through items in the order in which they were opened
F6: Cycle through screen elements in a window or on the desktop
F4: Display the address bar list in Windows Explorer
Shift + F10: Display the shortcut menu for the selected item
Ctrl + Esc: Open the Start menu
Alt + underlined letter: Display the corresponding menu
Alt + underlined letter: Perform the menu command (or other underlined command)
F10: Activate the menu bar in the active program
Right Arrow: Open the next menu to the right, or open a submenu
Left Arrow: Open the next menu to the left, or close a submenu
F5 (or Ctrl + R): Refresh the active window
Alt + Up Arrow: View the folder one level up in Windows Explorer
Esc: Cancel the current task
Ctrl + Shift + Esc: Open Task Manager
Shift when you insert a CD: Prevent the CD from automatically playing
Left Alt + Shift: Switch the input language when multiple input languages are enabled
Ctrl + ShiftL: Switch the keyboard layout when multiple keyboard layouts are enabled
Right or Left Ctrl + Shift: Change the reading direction of text in right-to-left reading languages

Dialog box keyboard shortcuts

Ctrl + Tab: Move forward through tabs
Ctrl + Shift + Tab: Move back through tabs
Tab: Move forward through options
Shift + Tab: Move back through options
Alt + underlined letter: Perform the command (or select the option) that goes with that letter
Enter: Replaces clicking the mouse for many selected commands
Spacebar: Select or clear the check box if the active option is a check box
Arrow keys: Select a button if the active option is a group of option buttons
F1: Display Help
F4: Display the items in the active list
Backspace: Open a folder one level up if a folder is selected in the Save As or Open dialog box

Windows logo key keyboard shortcuts

Windows logo key: Open or close the Start menu.
Windows logo key + Pause: Display the System Properties dialog box.
Windows logo key + D: Display the desktop.
Windows logo key + M: Minimize all windows.
Windows logo key + Shift + M: Restore minimized windows to the desktop.
Windows logo key + E: Open Computer.
Windows logo key + F: Search for a file or folder.
Ctrl + Windows logo key + F: Search for computers (if you’re on a network).
Windows logo key + L: Lock your computer or switch users.
Windows logo key + R: Open the Run dialog box.
Windows logo key + T: Cycle through programs on the taskbar.
Windows logo key + number: Start the program pinned to the taskbar in the position indicated by the number. If the program is already running, switch to that program.
Shift + Windows logo key + number: Start a new instance of the program pinned to the taskbar in the position indicated by the number.
Ctrl + Windows logo key + number: Switch to the last active window of the program pinned to the taskbar in the position indicated by the number.
Alt + Windows logo key + number: Open the Jump List for the program pinned to the taskbar in the position indicated by the number.
Windows logo key + Tab: Cycle through programs on the taskbar by using Aero Flip 3-D.
Ctrl+Windows logo key + Tab: Use the arrow keys to cycle through programs on the taskbar by using Aero Flip 3-D.
Ctrl+Windows logo key + B: Switch to the program that displayed a message in the notification area
Windows logo key + Spacebar: Preview the desktop.
Windows logo key + Up Arrow: Maximize the window.
Windows logo key + Left Arrow: Maximize the window to the left side of the screen.
Windows logo key + Right Arrow: Maximize the window to the right side of the screen.
Windows logo key + Down Arrow: Minimize the window.
Windows logo key + Home: Minimize all but the active window.
Windows logo key + Shift + Up Arrow: Stretch the window to the top and bottom of the screen.
Windows logo key + Shift+ Left Arrow or Right Arrow: Move a window from one monitor to another.
Windows logo key + P: Choose a presentation display mode.
Windows logo key + G: Cycle through gadgets.
Windows logo key + U: Open Ease of Access Center.
Windows logo key + X: Open Windows Mobility Center.

Windows Explorer keyboard shortcuts

Ctrl + N: Open a new window
Ctrl + W: Close the current window
Ctrl + Shift + N: Create a new folder
End: Display the bottom of the active window
Home: Display the top of the active window
F11: Maximize or minimize the active window
Ctrl + Period (.): Rotate a picture clockwise
Ctrl + Comma (,): Rotate a picture counter-clockwise
Num Lock + Asterisk (*) on numeric keypad: Display all subfolders under the selected folder
Num Lock + Plus Sign (+) on numeric keypad: Display the contents of the selected folder
Num Lock + Minus Sign (-) on numeric keypad: Collapse the selected folder
Left Arrow: Collapse the current selection (if it’s expanded), or select the parent folder
Alt + Enter: Open the Properties dialog box for the selected item
Alt + P: Display the preview pane
Alt + Left Arrow: View the previous folder
Backspace: View the previous folder
Right Arrow: Display the current selection (if it’s collapsed), or select the first subfolder
Alt + Right Arrow: View the next folder
Alt + Up Arrow: View the parent folder
Ctrl + Shift + E: Display all folders above the selected folder
Ctrl + Mouse scroll wheel: Change the size and appearance of file and folder icons
Alt + D: Select the address bar
Ctrl + E: Select the search box
Ctrl + F: Select the search box

Taskbar keyboard shortcuts

Shift + Click on a taskbar button: Open a program or quickly open another instance of a program
Ctrl + Shift + Click on a taskbar button: Open a program as an administrator
Shift + Right-click on a taskbar button: Show the window menu for the program
Shift + Right-click on a grouped taskbar button: Show the window menu for the group
Ctrl + Click on a grouped taskbar button: Cycle through the windows of the group

 Magnifier keyboard shortcuts

Windows logo key + Plus Sign or Minus Sign: Zoom in or out
Ctrl + Alt + Spacebar: Preview the desktop in full-screen mode
Ctrl + Alt + F: Switch to full-screen mode
Ctrl + Alt + L: Switch to lens mode
Ctrl + Alt + D: Switch to docked mode
Ctrl + Alt + I: Invert colors
Ctrl + Alt + arrow keys: Pan in the direction of the arrow keys
Ctrl + Alt + R: Resize the lens
Windows logo key + Esc: Exit Magnifier

Remote Desktop Connection keyboard shortcuts

Alt + Page Up: Move between programs from left to right.
Alt + Page Down: Move between programs from right to left.
Alt + Insert: Cycle through programs in the order that they were started in.
Alt + Home: Display the Start menu.
Ctrl + Alt + Break: Switch between a window and full screen.
Ctrl + Alt + End: Display the Windows Security dialog box.
Alt + Delete: Display the system menu.
Ctrl + Alt + Minus Sign (-) on the numeric keypad: Place a copy of the active window, within the client, on the Terminal server clipboard (provides the same functionality as pressing Alt + PrtScn on a local computer).
Ctrl + Alt + Plus Sign (+) on the numeric keypad: Place a copy of the entire client window area on the Terminal server clipboard (provides the same functionality as pressing PrtScn on a local computer).
Ctrl + Alt + Right Arrow: “Tab” out of the Remote Desktop controls to a control in the host program (for example, a button or a text box). Useful when the Remote Desktop controls are embedded in another (host) program.
Ctrl + Alt + Left Arrow: “Tab” out of the Remote Desktop controls to a control in the host program (for example, a button or a text box). Useful when the Remote Desktop controls are embedded in another (host) program.

Paint keyboard shortcuts

Ctrl + N: Create a new picture
Ctrl + O: Open an existing picture
Ctrl + S: Save changes to a picture
F12: Save the picture as a new file
Ctrl + P: Print a picture
Alt + F4: Close a picture and its Paint window
Ctrl + Z: Undo a change
Ctrl + Y: Redo a change
Ctrl + A: Select the entire picture
Ctrl + X: Cut a selection
Ctrl + C: Copy a selection to the Clipboard
Ctrl + V: Paste a selection from the Clipboard
Right Arrow: Move the selection or active shape right by one pixel
Left Arrow: Move the selection or active shape left by one pixel
Down Arrow: Move the selection or active shape down by one pixel
Up Arrow: Move the selection or active shape up by one pixel
Esc: Cancel a selection
Delete: Delete a selection
Ctrl + B: Bold selected text
Ctrl + +: Increase the width of a brush, line, or shape outline by one pixel
Ctrl + -: Decrease the width of a brush, line, or shape outline by one pixel
Ctrl + I: Italicize selected text
Ctrl + U: Underline selected text
Ctrl + E: Open the Properties dialog box
Ctrl + W: Open the Resize and Skew dialog box
Ctrl + Page Up: Zoom in
Ctrl + Page Down: Zoom out
F11: View a picture in full-screen mode
Ctrl + R: Show or hide the ruler
Ctrl + G: Show or hide gridlines
F10 or Alt: Display keytips
Shift + F10: Show the current shortcut menu
F1: Open Paint Help

WordPad keyboard shortcuts

Ctrl + N: Create a new document
Ctrl + O: Open an existing document
Ctrl + S: Save changes to a document
F12: Save the document as a new file
Ctrl + P: Print a document
Alt + F4: Close WordPad
Ctrl + Z: Undo a change
Ctrl + Y: Redo a change
Ctrl + A: Select the entire document
Ctrl + X: Cut a selection
Ctrl + C: Copy a selection to the Clipboard
Ctrl + V: Paste a selection from the Clipboard
Ctrl + B: Make selected text bold
Ctrl + I: Italicize selected text
Ctrl + U: Underline selected text
Ctrl + =: Make selected text subscript
Ctrl + Shift + =: Make selected text superscript
Ctrl + L: Align text left
Ctrl + E Align text center
Ctrl + R:: Align text right
Ctrl + J: Justify text
Ctrl + 1: Set single line spacing
Ctrl + 2: Set double line spacing
Ctrl + 5: Set line spacing to 1.5
Ctrl + Shift + >: Increase the font size
Ctrl + Shift + <: Decrease the font size
Ctrl + Shift + A: Change characters to all capitals
Ctrl + Shift + L: Change the bullet style
Ctrl + D: Insert a Microsoft Paint drawing
Ctrl + F: Find text in a document
F3: Find the next instance of the text in the Find dialog box
Ctrl + H: Replace text in a document
Ctrl + Left Arrow: Move the cursor one word to the left
Ctrl + Right Arrow: Move the cursor one word to the right
Ctrl + Up Arrow: Move the cursor to the line above
Ctrl + Down Arrow: Move the cursor to the line below
Ctrl + Home: Move to the beginning of the document
Ctrl + End: Move to the end of the document
Ctrl + Page Up: Move up one page
Ctrl + Page Down: Move down one page
Ctrl + Delete: Delete the next word
F10: Display keytips
Shift + F10: Show the current shortcut menu
F1: Open WordPad Help

Calculator keyboard shortcuts

Alt + 1: Switch to Standard mode
Alt + 2: Switch to Scientific mode
Alt + 3: Switch to Programmer mode
Alt + 4: Switch to Statistics mode
Ctrl + E: Open date calculations
Ctrl + H: Turn calculation history on or off
Ctrl + U: Open unit conversion
Alt + C: Calculate or solve date calculations and worksheets
F1: Open Calculator Help
Ctrl + Q: Press the M- button
Ctrl + P: Press the M+ button
Ctrl + M: Press the MS button
Ctrl + R: Press the MR button
Ctrl + L: Press the MC button
%: Press the % button
F9: Press the +/– button
/: Press the / button
*: Press the * button
+: Press the + button
-: Press the – button
R: Press the 1/× button
@: Press the square root button
0-9: Press the number buttons (0-9)
=: Press the = button
.: Press the . (decimal point) button
Backspace: Press the backspace button
Esc: Press the C button
Del: Press the CE button
Ctrl + Shift + D: Clear the calculation history
F2: Edit the calculation history
Up Arrow key: Navigate up in the calculation history
Down Arrow key: Navigate down in the calculation history
Esc: Cancel editing the calculation history
Enter: Recalculate the calculation history after editing
F3: Select Degrees in Scientific mode
F4: Select Radians in Scientific mode
F5: Select Grads in Scientific mode
I: Press the Inv button in Scientific mode
D: Press the Mod button in Scientific mode
Ctrl + S: Press the sinh button in Scientific mode
Ctrl + O: Press the cosh button in Scientific mode
Ctrl + T: Press the tanh button in Scientific mode
(: Press the ( button in Scientific mode
): Press the ) button in Scientific mode
N: Press the ln button in Scientific mode
;: Press the Int button in Scientific mode
S: Press the sin button in Scientific mode
O: Press the cos button in Scientific mode
T: Press the tan button in Scientific mode
M: Press the dms button in Scientific mode
P: Press the pi button in Scientific mode
V: Press the F-E button in Scientific mode
X: Press the Exp button in Scientific mode
Q: Press the x^2 button in Scientific mode
Y: Press the x^y button in Scientific mode
#: Press the x^3 button in Scientific mode
L: Press the log button in Scientific mode
!: Press the n! button in Scientific mode
Ctrl + Y: Press the y√x button in Scientific mode
Ctrl + B: Press the 3√x button in Scientific mode
Ctrl + G: Press the 10x button in Scientific mode
F5: Select Hex in Programmer mode
F6: Select Dec in Programmer mode
F7: Select Oct in Programmer mode
F8: Select Bin in Programmer mode
F12: Select Qword in Programmer mode
F2: Select Dword in Programmer mode
F3: Select Word in Programmer mode
F4: Select Byte in Programmer mode
K: Press the RoR button in Programmer mode
J: Press the RoL button in Programmer mode
<: Press the Lsh button in Programmer mode
>: Press the Rsh button in Programmer mode
%: Press the Mod button in Programmer mode
(: Press the ( button in Programmer mode
): Press the ) button in Programmer mode
|: Press the Or button in Programmer mode
^: Press the Xor button in Programmer mode
~: Press the Not button in Programmer mode
&: Press the And button in Programmer mode
A-F: Press the A-F buttons in Programmer mode
Spacebar: Toggles the bit value in Programmer mode
A: Press the Average button in Statistics mode
Ctrl + A: Press the Average Sq button in Statistics mode
S: Press the Sum button in Statistics mode
Ctrl + S: Press the Sum Sq button in Statistics mode
T: Press the S.D. button in Statistics mode
Ctrl + T: Press the Inv S.D. button in Statistics mode
D: Press the CAD button in Statistics mode

 Windows Journal keyboard shortcuts

Ctrl + N: Start a new note
Ctrl + O: Open a recently used note
Ctrl + S: Save changes to a note
Ctrl + Shift + V: Move a note to a specific folder
Ctrl + P: Print a note
Alt + F4: Close a note and its Journal window
Ctrl + Z: Undo a changeCtrl + Y: Redo a change
Ctrl + A: Select all items on a page
Ctrl + X: Cut a selection
Ctrl + C: Copy a selection to the Clipboard
Ctrl + V: Paste a selection from the Clipboard
Esc: Cancel a selection
Delete: Delete a selection
Ctrl + F: Start a basic find
Ctrl + G: Go to a page
F5: Refresh find results
F5: Refresh the note list
F6: Toggle between a note list and a note
Ctrl + Shift + C: Display a shortcut menu for column headings in a note list
F11: View a note in full-screen mode
1: Open Journal Help  

Windows Help viewer keyboard shortcuts

Alt + C: Display the Table of Contents
Alt + N: Display the Connection Settings menu
F10: Display the Options menu
Alt + Left Arrow: Move back to the previously viewed topic
Alt + Right Arrow: Move forward to the next (previously viewed) topic
Alt + A: Display the customer support page
Alt + Home: Display the Help and Support home page
Home: Move to the beginning of a topic
End: Move to the end of a topic
Ctrl + F: Search the current topic
Ctrl + P: Print a topic
F3: Move the cursor to the search box