France orders shift from Windows to Linux in massive digital sovereignty push

The French government has officially ordered all state ministries to begin a total migration from Microsoft Windows to Linux. The directive, issued by the Interministerial Digital Directorate (DINUM) on April 8, 2026, frames the move as a "strategic necessity" to reclaim France’s digital destiny from "extra-European" dependencies.

“Sortie de Windows": Reclaiming the desktop

The mandate requires every government ministry to submit a formalized plan by Autumn 2026 to eliminate reliance on non-European digital tools. While the French state already operates approximately 100,000 Linux-based PCs, this new order expands the scope to the entire civil service infrastructure, affecting upwards of 2.5 million employees.

"We can no longer accept that our data, our infrastructure, and our strategic decisions depend on solutions whose rules, pricing, evolution, and risks we do not control," stated David Amiel, Minister of Public Action and Accounts.

The move targets several core layers of the government’s tech stack:

• Operating Systems: Transitioning workstations to various Linux distributions.

• Productivity: Replacing Microsoft Office with open-source alternatives like LibreOffice.

• Collaboration: Phasing out Microsoft Teams and Zoom in favor of the homegrown Visio platform and the encrypted messaging app Tchap.

The geopolitical trigger

While France has long championed "digital sovereignty," analysts suggest the current acceleration is driven by shifting relations with the United States. Following the re-introduction of aggressive trade tariffs and ongoing concerns over the U.S. CLOUD Act, which allows American authorities to compel access to data held by U.S. firms, French officials have moved from "suggesting" domestic alternatives to "mandating" them.

Anne Le Hénanff, Minister Delegate for AI and Digital Technology, emphasized that the shift is a direct response to the risk of being "cut off" or "locked in" by foreign providers during geopolitical disputes.

Lessons from the Gendarmerie

To avoid the failures of past European Linux migrations, most notably the city of Munich’s abandoned "LiMux" project, France is leaning on the success of its national police force, the Gendarmerie Nationale.

The Gendarmerie began its transition in 2004, slowly introducing Firefox and OpenOffice before launching its own custom OS, GendBuntu, in 2008. By following this phased, long-term model, the government hopes to mitigate user frustration and ensure compatibility with legacy systems that have traditionally stymied such transitions.

A growing European trend

France is not alone in its "unplugging" from Silicon Valley. Earlier this year:

• Germany announced that all public-sector documents must be issued in open formats, excluding Microsoft Word.

• Schleswig-Holstein successfully transitioned 80% of its state government workplaces to open-source software.

• The European Parliament adopted a report directing the Commission to identify critical areas where the EU must reduce its reliance on foreign software and AI.

While the transition is expected to take several years to complete, the signal is clear: the era of proprietary, U.S.-controlled software as the default for European governance is coming to an end.