This investigation is an important step towards addressing Microsoft’s longstanding practice of improperly leveraging its ubiquitous Windows operating system and productivity apps into adjacent activities such as web browsers at the expense of alternative providers, including UK-based browsers such as Wavebox and Waterfox. The BCA stands ready to assist the CMA in its investigation and calls upon the CMA to deliver free and effective browser choice for UK businesses and other organisations of all sizes Microsoft’s ecosystem.