The Microsoft Authorized Refurbisher (MAR) program is part of Microsoft’s Partners in Learning and Unlimited Potential initiatives. The MAR program works with eligible refurbishers to provide legally-installed Microsoft operating systems on donated computers to eligible recipients.

The primary goal of the MAR program is to increase the number of donated and low-cost computers available to eligible charitable organizations, eligible academic users, and other Microsoft-specially approved recipients. In addition, the MAR program benefits the environment by helping to keep serviceable computers out of landfills.