This is just an update thread to inform those that do not frequent TenForums......should a new version be posted.
I will maintain the download there.
Showkey - Windows 10 Forums
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Update 17-Mar-2015:
Added OEM edition retrieval.
Original key and edition only appears after an upgrade (eg. Pro to WMC) .
Update 15-Apr-2015:
Added ability to retrieve key from backed-up windows image.
This requires redirection to the offline \Windows\System32\config\SOFTWARE hive - it has no file extension.
Eg output:
Update 16-Apr-2015:
Added Product key checker
Update 19-May-2015:
Minor bug-fixes
GUI improvements.
I will maintain the download there.
Showkey - Windows 10 Forums
********************************************************************

Update 17-Mar-2015:
Added OEM edition retrieval.
Original key and edition only appears after an upgrade (eg. Pro to WMC) .
Update 15-Apr-2015:
Added ability to retrieve key from backed-up windows image.
This requires redirection to the offline \Windows\System32\config\SOFTWARE hive - it has no file extension.
Eg output:

Update 16-Apr-2015:
Added Product key checker

Update 19-May-2015:
Minor bug-fixes
GUI improvements.