The probe would be the latest regulatory scrutiny against Big Tech from FTC Chair Lina Khan. Microsoft already faced a challenge from the FTC under Khan’s leadership targeting its acquisition of video game publisher Activision Blizzard, a $69 billion deal that was one of the largest in tech history.

The Federal Trade Commission is preparing to launch an investigation into anti-competitive practices at Microsoft’s cloud computing business, as the US regulator continues to pursue Big Tech in the final weeks of Joe Biden’s presidency.