I need to buy a new XP disc and license key. I see some websites sell the
OEM version. What’s the difference between that and a version I’d buy off the
shelf? Will Microsoft let me activate an OEM license key if I’m only a
OEM stands for “Original Equipment Manufacturer”, and those are the folks
like Dell and HP and Sony and others who manufacture computers. OEM Software is
the software that they install on your machine, or provide with the machine,
when you purchase it new.
How, then, can one buy OEM Software without purchasing a machine?
That, my friend, is exactly the issue.
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If you’ve purchased a machine lately, there’s a lot of software already
installed on the machine. A good manufacturer will also provide you
with the CD-ROMs containing that software, so that you can re-install it should
you need to reformat or otherwise repair your machine.
OEM Versions of software are provided by the software vendors, like
Microsoft, to manufacturers for mass distribution on new hardware. Sometimes
there’s nothing different between an OEM version of Windows and its retail
counterpart. More often, though, the hardware manufacturer will customize the
operating system such that in installs drives for their specific hardware,
displays their logo on boot, or other things relating to that specific
manufacturer. OEM versions of applications, such as Microsoft Office for
example, are typically pretty much identical to the box you might pick up on a
Folks attempting to sell OEM version of software are typically sell the
backup CD-ROMs that came with machines they’ve purchased. They’ve backed up
their machine in some other way, or perhaps duplicated the CDs for their own
use, and are taking the “official” OEM CDs and offering them for sale.
typically sell the backup CD-ROMs that came with machines they’ve
The problem is simple: OEM software almost always includes licensing
language along these lines: “For distribution with a new personal computer
only. This software may not be sold independently.”
Pretty clear, eh? Reselling the software that came with your computer is a
violation of the software vendor’s terms. In other words, it’s illegal.
Another potential problem is that what’s advertised as OEM software isn’t
that at all – it’s simply illegal pirated copies of the software. The OEM term
is used simply to attempt to “legitimize” the deeply discounted price.
Now, unless you yourself are building a business attempting to sell OEM
software illegally, you’re probably not going to get a visit from the police
about this. But you could run into some very serious issues down the road.
Specifically: you may not be able to update your software.
Microsoft, in particular, has been slowly ramping up their enforcement of
software legitimacy. That means that if the software you’re running is
determined to be an OEM version that’s been compromised and purchased illegally
(typically determined by the product key being used by many more people than
there were machines shipped with that key), you may be denied product updates,
including serious security patches, until you legalize your copy. (Which is
typically as simple as purchasing a retail copy and installing that on top of
your existing copy.)
So my advice is simple: buy retail. Definitely go bargain hunting, but as
soon as you see “OEM”, run away. Buy from a legitimate retailer instead.