How to check the pre-installed Win8/Win8.1 OEM system key?

How do brand computers get Win8.1 OEM keys?
When friends buy new brand computers, manufacturers generally pre-install OEM version Win8 system, which is Win8 simplified Chinese version. Because Microsoft adopted a new activation method for the OEM version of Win8, namely OA 3.0 activation technology, bid farewell to the history of the genuine Windows key tag of the previous Vista and Win7 brand computers.
Win8 OEM 3.0 activation mode, that is, each OEM machine must correspond to a unique key, therefore, OEMs need to write the unique Windows8 key to the BIOS board information of each new Win8 computer, when we first use When you need to activate the network

Today, Pepsi.com offers several methods to let you know how to find the win8/win8.1 key.
Premise: How do I know the OEM version of my computer pre-installed win8 system?
The operation is as follows:
1, use the Win+R key combination to open the "Run" window, enter slmgr.vbs -dlv< Br>
2, Win8/Win8.1 system will automatically generate a script information to record the current system information (in the system description, if OEM_DM channel is displayed, it can be judged as OEM version Win8 system)

Method 1: Use the all-round hardware tool AIDA64 v4.0
to operate as follows:
Open the AIDA64 tool, select the motherboard "ACPI" in the left menu, select "ld" in the description of the right table, as shown in the figure The current Win8 OEM full key is displayed at the bottom of the project (SLS Data).

Method 2: With the product key query tool Product Key
operation is as follows:
Download the decompression gadget, run ProduKey.exe main program, you can query the current system Win8 OEM 25-bit full secret Key

Method 3, no third-party tools, system native command line (support Windows8, Windows 8.1, Windows RT full platform)
Operation is as follows:
1, use the key combination Win + Q, or Move your mouse to the lower right corner of the screen, open the search function in the Charm menu. 2. Enter PowerShell, search for PowerShell component
3, right click on Windows PowerShell, run as administrator
4, under PowerShell window Enter the following command: (Note: English characters)

5, then, Windows PowerShell automatically displays the current Win8 OEM full key