certificat d'authenticité(A label with sophisticated anti-counterfeiting features that helps the end user identify that the computer uses a validly licensed copy of Microsoft Windows. The product name and a unique product key appear in the center of the label. The OEM must physically attach the COA label to the computer chassis, and it should never be removed from the computer)
COA(A label with sophisticated anti-counterfeiting features that helps the end user identify that the computer uses a validly licensed copy of Microsoft Windows. The product name and a unique product key appear in the center of the label. The OEM must physically attach the COA label to the computer chassis, and it should never be removed from the computer); Certificate of Authenticity(A label with sophisticated anti-counterfeiting features that helps the end user identify that the computer uses a validly licensed copy of Microsoft Windows. The product name and a unique product key appear in the center of the label. The OEM must physically attach the COA label to the computer chassis, and it should never be removed from the computer)
certificate of authenticity A label with sophisticated anti-counterfeiting features that helps the end user identify that the computer uses a validly licensed copy of Microsoft Windows. The product name and a unique product key appear in the center of the label. The OEM must physically attach the COA label to the computer chassis, and it should never be removed from the computer
