It’s crucial to check for an authentic Certificate of Authenticity when purchasing Windows 10/11 Pro/Home activation or license keys. This ensures that you get a genuine product. The COA is a physical or digital evidence that the software is genuine, typically included with OEM and retail licenses. Here are the top 10 important points to keep in mind when dealing with COAs. 1. Learn What a COA is A Certificate of Authenticity (Certificate of Authenticity) is the label, sticker or…