CMA's Microsoft probe tells a decade-old story: bundling still pays, competition still suffers

The Bundle That Ate Britain's Cloud

I built something like this in 2003. Not Microsoft Office, obviously, but a marketing automation suite that bundled email, SMS, and web analytics into one "seamless" package. The positioning was beautiful: "Everything you need in one place." The reality was uglier: once you were in, switching meant rebuilding your entire workflow from scratch.

Sound familiar?

The Competition and Markets Authority's Strategic Market Status investigation into Microsoft's business software ecosystem, launched this week, reads like a greatest hits compilation of bundling tactics I've watched destroy competition for two decades. Windows, Word, Excel, Teams, Copilot: all tied together in ways that make leaving feel like amputating a limb.

The Numbers Don't Lie

Here's what makes this different from the usual regulatory theatre: there's a £2.1 billion class action lawsuit already cleared by the Competition Appeal Tribunal running alongside the CMA probe. Nearly 60,000 UK businesses claim Microsoft has systematically overcharged them for running Windows Server on AWS, Google Cloud, or Alibaba Cloud.

That's not regulatory posturing. That's real money.

The economics are brutal and elegant. Microsoft lets you move your on-premises licences to Azure at no extra cost. Want to run the same workload on Google Cloud? You'll pay up to five times more. It's not a bug, it's the entire business model.

Strategic Market Status: New Powers, Old Problems

The SMS designation the CMA is considering isn't just another regulatory label. Under the Digital Markets, Competition and Consumers Act (Britain's answer to the EU's Digital Markets Act) it would give regulators specific powers to force interoperability, unbundle products, and require transparent licencing terms.

Microsoft faces a February 2027 deadline for the SMS decision. If designated, the company could be forced to restructure how it prices software across cloud platforms, potentially eliminating the Azure discount that's locked so many British businesses into its ecosystem.

The AI Angle Changes Everything

This isn't just about legacy Windows Server licencing. The probe specifically examines how competing AI companies integrate with Microsoft's business software. With Copilot baked into everything from Word to Teams, Microsoft is using the same bundling playbook that worked for Internet Explorer in the browser wars.

The timing is deliberate. As one CMA executive put it, they're "not just responding to today's concerns but getting ahead of emerging issues." Translation: they've watched Microsoft embed AI across its entire stack and realised the competition window is closing fast.

What This Means for UK Businesses

If you're running hybrid cloud or planning multi-cloud deployments, this investigation matters more than most regulatory noise. The CMA has "heard that UK customers may not always be able to effectively combine software from Microsoft with that of other providers," limiting access to competitive pricing and innovation.

That's regulatory speak for: you're being had.

Microsoft's Predictable Response

Microsoft President Brad Smith's response follows the standard playbook: "committed to working quickly and constructively" while emphasising how "rapidly developments in AI are reshaping the competitive landscape."

It's the same language I heard from every dominant platform facing scrutiny over the past twenty years. The landscape is always "rapidly changing" when you're the one being investigated.

The Real Test

Here's what matters: will the CMA follow through? They've got form. Google and Apple both received SMS designations last year for their mobile platforms. But Microsoft's ecosystem is deeper, more entrenched, and generates more revenue per customer than mobile app stores.

The parallel £2.1 billion lawsuit adds pressure that previous investigations lacked. Microsoft can't just weather this one through legal delays and corporate charm offensives. Real money is at stake.

For British businesses trapped in the Microsoft ecosystem, this investigation represents the best chance in a decade to break free from licencing terms that make vendor switching economically suicidal.

Whether the CMA has the backbone to follow through remains to be seen. But for the first time since the IE antitrust cases, Microsoft faces regulatory scrutiny with actual financial consequences attached.

That changes everything.