Office 2010 to Office 2013 (Home & Student)

I recently purchased a 3-license version of Office 2010 Home and Student. One license is installed on a new desktop computer. The Office 2010 came with an offer to upgrade to Office 2013 free of cost.

If I redeem this offer and upgrade the desktop to Office 2013, what happens to the other 2 install licenses of Office Home & Student? Will I lose just 1 license or all 3 licenses?

Thank you for your replies.
 
Solution
I think it's the same type deal as upgrading Windows. You will still have your 2 2010's and 1 2013. Now perhaps you can upgrade all 3, that would be nice.

stickg1

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Mar 7, 2012
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I think it's the same type deal as upgrading Windows. You will still have your 2 2010's and 1 2013. Now perhaps you can upgrade all 3, that would be nice.
 
Solution

Onus

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Jan 27, 2006
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If the upgrade offer was free of cost, check the duration on it, e.g. "must be used by..." but I agree with Stick; you shouldn't forfeit unused Office 2010 licenses just because you upgraded one of them.