The move by Khan, who has less than two months remaining in office before the Trump administration takes over, is one last attempt to rein in Big Tech.

Microsoft is confronting a federal investigation that could reshape the technology industry's competitive landscape, with regulators examining the company's potentially anticompetitive practices in cloud computing and artificial intelligence markets.

The probe was approved by FTC Chair Lina Khan ahead of her likely departure in January. The election of Donald Trump as U.S. president and the expectation he will appoint a fellow Republican with a softer approach toward business, leaves the outcome of the investigation up in the air.