Information Week - Microsoft announced today it is expanding its refurbishing rules to benefit companies who want to refurbish and re-sell their old PCs to new customers. The new Microsoft Authorized Refurbisher (MAR) program is an offspring of its current Community MAR, which is designed for educational institutions, charities, and nonprofit organizations. "Companies don't know what to do with their old PCs, so they collect dust in the company cafeteria or stack up in the hallways," Hani Shakeel, senior product manager of the Genuine Windows Product Marketing team said in a statement. "This is a very common fate for PCs these days, especially with the increased environmental regulations around the disposal of computers." The only operating systems offered with MAR for Refurbished PCs are, Windows XP Professional, and Windows XP Home, and the PCs that are being refurbished need to have the Certificate of Authenticity.