> I just bought Vista at the store and am going to install it on my main
> computer. Can I install it on my upstairs computer as well?
You need to purchase a separate Vista license for each computer on
which you install it.
Just as it has *always* been with *all* Microsoft operating
systems, it's necessary (to be in compliance with both the EULA and U.S.
copyright law http://www4.law.cornell.edu/uscode/17/117.html
), if not
technically) to purchase one Vista license for each computer on which it
is installed. (Consult an attorney versed in copyright law to determine
final applicability in your locale.) The only way in which Vista
licensing differs from that of earlier versions of Windows (up until
WinXP, that is) is that Microsoft has added a copy protection and
anti-theft mechanism, Product Activation, to prevent (or at least make
more difficult) multiple installations using a single license.
If you have Vista Ultimate, it's sometimes possible to qualify for
additional licenses, at a reduced cost:
Windows Vista: Windows Vista Family Discount
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