ACTION	KEYS
Copy	Control + C
Paste	Control +V
Cut	Control + X
Undo	Control + Z
Delete	Delete
Create a shortcut to a selected item	Control + Shift + Drag Item with mouse
Highlighting text blocks	Control + Shift + any arrow
Deleting without going to recycle bin	Shift + Delete
Renaming a selected item	F2
Moving insertion point to next word	Control + Right Arrow
Moving insertion point back to beginning of previous word	Control + Left Arrow
Moving insertion point to beginning of next paragraph	Control + Down Arrow
Moving insertion point to beginning of the previous paragraph	Control + Up Arrow
Copy a selected item	Control + Drag Item with mouse
Selecting more than one item in a window, desktop or document	Shift + any arrow key
View Properties of a selected item	Alt + Enter
Select All	Control + A
Open shortcut menu for active window	Alt + Spacebar
Search	F3
Quitting an active program	Alt + F4
If multiple documents open, close active document	Control + F4
Cycle through items in window or desktop	F6
Cycle through items in order of opening	Alt + Escape
Switch between open items	Alt + Tab
Display Start Menu	Control + Escape
Display Active Window System Menu	Alt + Space Bar
Display Shortcut menu for item selected	Shift + F10
Display Address Bar list in My Computer or Windows Explorer	F4
Display Menu Item	Alt + letter underlined in menu item
Execute Menu Item	Enter underlined letter from menu item
Refresh Active Window	F5
Activate Menu Bar in Active Program	F10
Folder up one level in My Computer or Windows Explorer	Backspace
Next menu on right or sub menu	Right Arrow
Next menu on left or close sub menu	Left Arrow
Current Task Cancellation	Escape
Stop a CD from playing automatically	Shift
In Save As or Open Dialog Box open folder up one level	Backspace
Selecting or clearing a check box	Spacebar
Moving forward through tabs	Control + Tab
Moving backward through tabs	Control + Shift + Tab
Moving forward through options	Tab
Moving backward through options	Shift + Tab
Selecting from option buttons	Arrow keys
Help	F1
Command or Option	Alt + letter underlined
Activate Command or Button	Enter
Display items in active list	F4
Show Desktop	+ D
Toggle Start Menu
Minimize all windows	+ M
System Properties Box	+ Break
Restore all windows	+ Shift + M
Open My Computer	+ E
Windows Help	+ F1
Search for files and folders	+ F
Search for other computers	Control + + F
Open Run Box	+ R
*Lock Computer or Switch Users	+ L
Display item's shortcut menu
Open the Utility Manager	+ U
Toggle Keys on/off	Hold Num Lock for 5 seconds
High Contrast on/off	Left Alt + Lest Shift + Print Screen
Filter Keys on/off	Hold Right Shift for 8 seconds
Sticky Keys on/off	Press Shift 5 times
Mouse Keys on/off	Left Alt + Left Shift + Num Lock
Windows Explorer Shortcuts
Display folder contents	Num Lock + Keypad Plus Sign
Display Bottom of Window	End
Display Top of Window	Home
Collapse Folder	Num Lock + Keypad Minus Sign
Display Sub folders	Num Lock + Keypad Asterisk
Collapse current expanded selection, or select parent folder	Left Arrow
Display selection if collapsed, or select first sub folder	Right Arrow

*Lock computer if you are connected to a network or if you are not connected then switch users.

The above table is based on your keyboard having the keys mentioned. For example some keyboards don't have the application key or the Windows logo key.