Upgrading some pc components would,but a diffrent pc,no.1 license per pc,
youre new pc will get recognized as being "not the same pc"...
To BL:
Please ignore the ranting of Andrew E., our resident troll in these
newsgroups. His answers are almost never correct, and often dangerous.
In this case, his answer above, although not entirely wrong, is
incomplete, and could easily lead you to the wrong conclusion.
Here's the full correct answer:
There are two types of Windows licenses: Retail and OEM. OEM licenses
are those that come with the computer and also those which are sold
separately at a lower than retail price, usually with hardware.
If yours is a retail copy of Windows, there is no problem at all. You
may not have it installed on moire than one computer at once, but you
always free to take it off one computer and move it to another. You
can do that as often as you need or want to.
However OEM copies come with several restrictions, the most severe of
which is that its license ties it permanently to the first computer
it's installed on. It can never legally be moved to another computer,
sold, or given away. If the computer dies the license to use Windows
dies with it. This is one of the main reasons that OEM versions are
less expensive than retail versions.
Over and above that licensing issue, there is another potential issue
with OEM versions--they are often BIOS-locked to the motherboard. If
that's the case with your copy, it will not work at all on a different
computer.
So if your laptop came with Windows XP, you're out of luck. But if it
came with an earlier version of Windows, and you upgraded to XP with a
retail version, yes, you *can* reuse your copy.