To help prsự kiện software piracy, Microsoft requires that Windows 8 is activated before it can be used. All dienanhtp.comhường. and Compaq computers & tablets that come with Windows 8 installed activates automatically once connected to lớn the Internet, khổng lồ make it easier for you to lớn set up your computer. However, if you decide to lớn install a different version of Windows 8 (such as an tăng cấp to lớn the Enterprise version) or a store-bought copy of Windows 8, you need khổng lồ activate Windows as part of the installation process. There also might be situations when Windows prompts you to lớn activate the sản phẩm, even though the hàng hóa has already been activated.

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If you are not using the lakiểm tra version of Windows 8, some graphics and information in this document may vary. You can get the lakiểm tra version from the Microsoft Store.
Windows Product Activation (WPA) sends an installation ID number to lớn Microsoft before Windows is verified, & then activated. WPA involves two numbers. One is an installation ID (generated by entering a Windows 8 hàng hóa key) that the computer owner submits to Microsoft, either over the Internet or by phone. The second is a confirmation ID, assigned by Microsoft, which is used khổng lồ activate the operating system’s software. This method is used when upgrading or installing Windows 8 from disc (not System Recovery).
OEM Activation 3.0 (OA3) takes place at the factory. A digital hàng hóa key (DPK) is installed on the motherboard BIOS during the manufacturing process. Windows 8 will activate automatically the first time the computer is connected to the Internet. With OA3-activated systems, most of the computer"s hardware can be replaced without the need lớn reactivate the software through Microsoft.
If your computer came with Windows 8 pre-installed, Windows might require activation through Microsoft due to:
Replacement of the motherboard with one that does not contain the original equipment manufacturer (OEM) version of the BIOS.
Windows Product Activation (WPA): Requires a person lớn unloông xã the computer before Windows can be used.
OEM Activation 3.0 (OA3): No personal intervention is required normally to lớn activate Windows, but the computer must be connected to lớn the Internet for Windows to lớn activate automatically.
End-User License Agreement (EULA): The agreement that the Windows user must accept to use the Windows product.
Certificate of Authentithành phố (COA): A proof of ownership identification method lớn help prove sầu that a Windows product is not counterfeit or copied. The COA might be in the size of a label that contains a bar code và hàng hóa key.

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Genuine Microsoft Label (GML): A label included on computers that came with Windows 8 pre-installed. The GML indicates which version of Windows 8 was installed originally on the computer.
Installation Identification Number: A number generated based on the hàng hóa key entered during Windows setup.
The quickest and easiest way to lớn activate your copy of Windows 8 is to activate it over the Internet. If you vày not have an Internet connection, or if it is inconvenient lớn make a network connection, see the Other ways khổng lồ activate Windows 8 section of this document.
Press the Windows
+ I keys to open the Settings charm.



If you used discs to lớn install Windows 8, you might find the sản phẩm key on the disc packaging. If you bought Windows 8 over the Internet, the product number might be included in an tin nhắn you received after the purchase & tải về of Windows 8.
If you have the Windows8 disc packaging, apply the Windows 8 Certificate of Authentithành phố label to lớn your computer for easy reference in the future.

You can add features khổng lồ Windows 8, or get a different version of Windows 8. From the Start screen, type add features lớn open the Search charm, và then select Add features to Windows 8.1 from the tìm kiếm results. When the Add features to lớn Windows 8.1 screen opens, follow the onscreen instructions.

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