In message , swalker
writes:
On Mon, 13 Aug 2018 18:47:35 -0500, swalker wrote:

Finally broke down and bought a new bare bones laptop that came with
Win 10.

One of the programs I must have is Outlook 10. Since I bought a copy
at Best Buy a few years back and have been using it on a couple of
computers I assumed installation would not be a problem.

Not so, MS says the Product Key I have isn't valid.

Do these things expire?

I don't _think_ so, though the activation servers may be turned off at
some point. (Though I believe XP can still be activated ...)

Is there some limit on the number of computers that can use a single
copy?

I was going to say "yes - one; there are times when you can buy packs of
several _licences_, often three, but each is only for one machine", but
what you said below reminded me of a faint memory of having seen a
scheme for enabling something to be installed on both a home and a work
machine (or something like that), on the basis that only one of them was
ever _used_ at a time. Although I don't _think_ that was a Microsoft
product.

Jim

Thanks for all the comments. I currently have Outlook 2010 installed
on my Win 7 desktop and my Win 7 laptop. Laptop is only used when I
travel.
The Win 7 laptop is nearing the end of it's useful life

What has made you come to that conclusion?

so I bought
the new laptop with Win 10 on it as a replacement when the Win 7
machine finally fails.

So what I want is Outlook 2010 installed on 3 machines but use only 1
at a time.

Sounds like that might not be possible.

I don't think so (from a single licence).

Thanks again.

Jim
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

Everyone learns from science. It all depends how you use the knowledge. - "Gil
Grissom" (CSI).