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Jun 01, 2019
Perfect!
I received it in only one minute. This Windows 10 Pro Key worked perfectly on my ThinkPad Windows 10 OEM Home Edition Version 1903
Start= Setting= Update & Security= Activation= Change product key
Then just waited for about 3 mins. After auto rebooted, I checked Windows activation status in Control Panel= System. The Windows edition changed from Windows 10 Home to Windows 10 Enterprise, but it was not activated. Then I tried Start= Setting= Update & Security= Activation= Change product key again, the Windows edition changed from Enterprise to Pro, and it was activated. It's a Windows 10 Pro Retail Key.
Perfect!