Retrieve Product Key for Office 2013 Installation

I have a client who is looking to transfer over their Office 2013 license from an old machine to a new one.  However, this installation was done prior to Microsoft forcing you to tie your license to an MS Account, and I don't think they have the product key handy anymore.  

My old ways of using Belarc and JellyBean no longer work for Office 2013, so I need a new way to retrieve the product key.  Any ideas?
MikeIT ManagerAsked:
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JohnBusiness Consultant (Owner)Commented:
You need to get it from Microsoft. They would have sent you an email with the information. Correct that Belarc and Recover Keys (which I have) will not give you this information.

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MikeIT ManagerAuthor Commented:
The issue is I do not believe my client has any email or retail packaging with the key on it.
JohnBusiness Consultant (Owner)Commented:
You cannot recover the key to the best of my knowledge so you need to find some evidence and go back to Microsoft. They might be able to identify by the client's email address.
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* Newt/Lazesoft Windows Key Finder
* Check registry for possible traces:  HKLM\SOFTWARE\Microsoft\Office\15.0\ClickToRun
* Use  the  script that comes with Office:  OSPP.VBS /dstatus

In general, for Office 2013,  you will only be able to "recover" or "see" the last 5 digits of
the key,  because O2013  does not  permanently store the whole product key on the computer.

Therefore, if you can't find an "accidentally left behind"  spurious copy of the key (Which is not likely to exist),
then there is really no option,  other  than  finding the purchase literature or contacting MS with proof of purchase
if the product was  registered,  or whoever activated  the product,   Or purchasing again, Sorry.

This key non-recoverability in Office 2013, I believe is a result of people stealing keys
from installed computers,  so it was a security issue  from Microsoft's perspective,
and  blanking out keys from the registry helps discourage piracy.

The same is true of Office 2010 and Windows 7 / higher when installed from volume media using a MAK
key,    But at least  in the older versions,  and for Windows itself in particular ----
a manual command had to be invoked to remove product key from the registry after successful activation,
otherwise it would be left behind ----- that is,  until  2013 came around....
MikeIT ManagerAuthor Commented:
Hopefully the client still has the original literature with the product key, otherwise they we are just going to suggest they purchase a new key.
JohnBusiness Consultant (Owner)Commented:
@Shadowless127  - Thanks. Yes - customers need to keep their documentation. Life has changed for us.
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