The French government is transitioning from Microsoft Windows to the open-source Linux operating system as part of a strategy to reclaim control over national data and reduce reliance on American software. This initiative, led by the Interministerial Directorate for Digital Affairs (DINUM), aims to ensure that France's data and infrastructure are not dictated by external entities. The government is conducting an audit of its digital infrastructure to find sovereign alternatives and has already confirmed its exit from Windows. The National Health Insurance Fund is migrating its 80,000 agents to tools developed on an interministerial digital platform, and the government plans to migrate its health data platform to a trusted domestic solution by the end of 2026.