How to obtain my SQL Server 2008 R2 Licence so I can transfer it to new server?

Hi there. We currently have SQL Server 2008 R2 running on a single server/DC (small office setting), and we just purchased a new server box, and want to move everything over to it (including SQL Server). Unfortunately, the installation media with the licence on it is missing - is there a way to find the licence that the old server with SQL 2008 R2 is using? To clarify, SQL was installed separately, so should have its own licence. I looked through the registry, but the "Productcode" registry key didn't have the correct format (wasen't aaaa-bbbbb-ccccc-ddddd-eeee).
Thanks.
Jack FrostAsked:
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Raja Jegan RSQL Server DBA & Architect, EE Solution GuideCommented:
>>  I looked through the registry, but the "Productcode" registry key didn't have the correct format (wasen't aaaa-bbbbb-ccccc-ddddd-eeee).

Yes, it will be in hashed\encrypted format and hence will not match the correct format.
You can use the below Powershell scripts to retrieve the keys from already installed SQL Server instances and I've used the below scripts once..
https://gallery.technet.microsoft.com/scriptcenter/Get-SQL-Server-Product-4b5bf4f8

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Nakul VachhrajaniTechnical Architect, Capgemini IndiaCommented:
If you still have the purchase order/receipt, Microsoft may be able to retrieve it for you from their records.

Did you try calling up Microsoft support?
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