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

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 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.

Thanks again.

Jim