Product key

Since some people seem to be incapable of finding solutions themselves
before turning to others, here is the way to find your product key for
Windows in the absense of the CD disk:

:Open the start menu
:Press enter on run
:Type the words "regedit" without the quotations
:Use the down arrow to locate: HKEY_LOCAL_MACHINE
:Press the right arrow to expand the list of options within the
HKEY_LOCAL_MACHINE folder.
:Use the down arrow to locate Software
:Once again, expand the tree view through the use of the right arrow
:use the down arrow to locate Microsoft
:Expand the view with the right arrow
:Use the down arrow to locate Windows
:Expand the view with the right arrow
:Press enter on Current Version
:Press F6 to move to the other side of the display
:use the down arrow to locate Productkey
:Just to the right of "Productkey," you will find the 25 character
alpha-numeric code for your copy of Windows

Or... go to this URL and download a short program to do this for you:
http://www.magicaljellybean.com/keyfinder.shtml