Microsoft Confronts Massive £1.7 Billion Legal Battle in UK Over Cloud Practices
Microsoft is set to face a monumental £1.7 billion collective action court case in the United Kingdom, accused of abusing its dominant position in the cloud computing sector. The Competition Appeal Tribunal has ruled that the claim, brought on behalf of almost 60,000 UK businesses and organisations, can proceed towards trial.
Thousands of Businesses Seek Compensation for Alleged Overcharging
More than 59,000 UK enterprises and public bodies are collectively pursuing compensation from the global technology behemoth. They allege they were unfairly overcharged for using Windows Server on rival cloud services, rather than on Microsoft's own Azure platform. The tribunal granted a Collective Proceedings Order (CPO) on an opt-out basis, enabling these entities to sue as a group rather than individually, significantly streamlining the legal process.
In their detailed judgment, the tribunal, chaired by Mr Justice Adam Johnson, stated unequivocally that "the claim comfortably crosses the hurdle of having a real prospect of success." This preliminary endorsement underscores the seriousness of the allegations and paves the way for a full trial.
Legal Expert Leads Charge Against Microsoft's Licensing Practices
Maria Luisa Stasi, a prominent digital markets regulation expert and lawyer, is spearheading the case on behalf of the affected businesses. If successful, these organisations could reclaim substantial sums in compensation. Stasi emphasised the broader implications, stating: "Today’s ruling is an important moment for the thousands of organisations impacted by Microsoft’s conduct and in ensuring that a critical sector of the economy is innovative and open."
She further highlighted the prolonged financial impact, noting: "For years, Microsoft’s practices have had real financial impact on both public and private organisations. I’m now looking forward to preparing for trial and getting their money back on their behalf." The core of the claim centres on accusations that Microsoft abused its market position through restrictive licensing practices related to Windows Server and its cloud services, particularly Azure, potentially stifling competition and innovation.
Microsoft Plans to Appeal Tribunal's Decision
In response, a Microsoft spokesperson announced the company's intention to appeal, arguing that the tribunal "failed to follow recent precedent from the Supreme Court on class action certifications." The spokesperson also contested the underlying allegations, clarifying that "today’s decision makes no final determination on those claims." This sets the stage for a protracted legal battle that could have significant ramifications for the cloud computing industry in the UK and beyond.
UK businesses that may have used Windows Server on non-Microsoft cloud services are encouraged to register their interest in potential compensation through the dedicated claims website. The outcome of this case could influence future regulations and competitive dynamics in the rapidly evolving cloud sector.



