A certificate of authenticity (COA) is a label to help you and your customers identify genuine Microsoft Windows software. Without it, your customers will not have a legal license to run their Windows software.

You will find the COA included in the System Builder Pack that you acquired from your distributor. If it is not included, contact your distributor.
You must affix the COA to the case of the computer on which you are preinstalling Windows as described in the system builder license.

You cannot sell the computer without performing this step, So you should buy OEM COA Labels to place on PC's for legal distribution as a Reseller.

Windows 10 Pro Retail COA

The picture above shows the look and feel of the COA used for Windows 10 Pro. Similar to the Windows 7 & Windows 8.1 COA, It also includes security features to help prevent counterfeiting.

Place of Origin	Hong Kong
Brand Name	Microsoft
Version	Windows 10 Pro COA X18
Warranty Period	One Months
Packaging Details	COA with Retail Key
Delivery Time	DHL Delivery within a week
Payment Terms	Payoneer / PayPal / PM / Bank / BTC
Supply Ability	50,000 Pcs Monthly
Minimum Order Quantity	10 Pcs

Windows 10 Pro Retail COA Package for Resellers

We're Microsoft Product distributors & Wholesale Suppliers around the World, Our supply is available for Windows 10 Other Versions License as well as COA Stickers in Bulk Quantity.

Windows 10 Pro Retail COA Package is available in bulk. If you're reseller, You can contact us for discount on large quantity orders.