A refurbished device that has gone through the Microsoft Authorized Refurbisher (MAR) program will have a Certificate of Authenticity (COA) or GML (Genuine Microsoft Label) on it. The COA will say it is for Refurbished Device and will also give a brand name for the Microsoft Authorized Refurbisher who refurbished it. See below for a COA example. GML is used when Product keys (activation code) is a part of Windows. See below GML example.
- Special Colour
- Special Wording
- MAR Brand name
- Holographic image displays Microsoft® in three depth levels
- Color-Shift area, Blue to Purple by changing the viewing angle
- Holographic Micro-Text