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Ken Gash said:
I just got a new computer with XP Home, SP2 preloaded. My
trusty old
Gateway finally blew its HD so I recycled it. It was running
XP Pro
and I still have the XP Pro CD. Can I now upgrade the new
machine
with this disk (it is not an upgrade disk) from Home to Pro
without
having to do a clean install and then reinstall the apps?
The answer as to whether you can do it *at all* depends on
whether it's an OEM CD or not. If it came with the Gateway, it's
an OEM CD. Even if you bought it yourself separately, it might be
an OEM CD.
If it's an OEM version, 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. So you can not legally
do this with an OEM Version. And it came with the Gateway, it may
be BIOS-locked to it, and it might not even be possible to use on
the new computer, regardless of the legality.
If it's a retail CD, you can use it to upgrade from Home to
Professional, whether it's an Upgrade or a Full version. If it
doesn't incorporate SP2, you'll first have to make a slipstreamed
copy of the CD, with SP2 incorporated; otherwise the upgrade will
fail, telling you you're trying to install an older version over
a newer one.
However, before you even bother doing upgrading, first consider
whether you really need to. It's probably not worth the trouble.
XP Professional and XP Home are exactly the same in all respects,
except that Professional has a few features (mostly related to
networking and security) missing from Home. For most (but not
all) home users, even those with a home network, these features
aren't needed, would never be used.
For details go to
http://www.winsupersite.com/showcase/windowsxp_home_pro.asp
http://www.microsoft.com/windowsxp/whichxp.asp
http://www.microsoft.com/windowsxp/home/howtobuy/choosing2.asp
Also note that Professional allows ten concurrent network
connections, and Home only five.