How to check the product key

in the pre-installed Win8 system. Are you still using a third-party tool to check the product key in the computer pre-installed Win8 system? The following is a small series for everyone to see how to view the computer pre-order with only one command. Install the product key in the Win8 system.
This method is suitable for pre-installed computers with OA 3.0 technology such as Windows RT, Windows 8, Windows 8.1 and Windows Server 2012. First:
1. Run Windows PowerShell, type the following command and press Enter:
(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey
2. All punctuation is in English half angle, browse The device is displayed as a friend of Microsoft Yahei, please don't make a mistake;
3. Now we can see the product key in the pre-installed Win8 system.