Microsoft CEO claps back at Slack, asks if Slack would exist without Windows

Satya Nadella at Build 2018
Satya Nadella at Build 2018 (Image credit: Windows Central)

What you need to know

  • Microsoft CEO Satya Nadella discusses big tech companies in a recent interview.
  • One topic he touches on is Slack and how the open nature of Windows shaped Slack becoming popular.
  • Slack and Microsoft have had a heated relationship over the last few years.

Slack has an interesting history with Microsoft. When Teams came out, Slack said they were "genuinely excited to have some competition." In March of last year, Slack's CEO said "Teams is not a competitor to Slack." A 10-Q filing from Slack from October 2019 states that Slack's "primary competitor is currently Microsoft Corporation."

Slack also accused Microsoft of anticompetitive practices in a complaint to the EU last July. Microsoft responded by stating, "Slack suffered from its absence of video-conferencing."

Despite all of this back and forth, the companies are tied together. Slack is available on Windows, and Nadella points out how the nature of Windows paved the way for Slack:

I always ask the question, would Slack have even existed if it was not for the free access they had on top of, say, the Windows platform? They didn't have to call Microsoft. They didn't have to go through any of our app stores. They didn't need any of our permission compared to any of the other platforms that they're available on. We perhaps provide the most open platform in Windows and even in Office 365.

Nadella raises an interesting point. These days, walled gardens aren't that rare. Many operating systems have restrictions, and app stores are curated. While Microsoft does have an app store of its own, developers are still free to make apps and release them how they'd like.

As pointed out by our executive editor Daniel Rubino, Microsoft played a major role in computers becoming ubiquitous. Microsoft and Windows played a major roll in Slack being possible.

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Sean Endicott
News Writer and apps editor

Sean Endicott is a news writer and apps editor for Windows Central with 11+ years of experience. A Nottingham Trent journalism graduate, Sean has covered the industry’s arc from the Lumia era to the launch of Windows 11 and generative AI. Having started at Thrifter, he uses his expertise in price tracking to help readers find genuine hardware value.

Beyond tech news, Sean is a UK sports media pioneer. In 2017, he became one of the first to stream via smartphone and is an expert in AP Capture systems. A tech-forward coach, he was named 2024 BAFA Youth Coach of the Year. He is focused on using technology—from AI to Clipchamp—to gain a practical edge.