Microsoft is retiring some key 365 companion apps — Calendar, People, and Files services all set to be cut
- Calendar, People and Files companion apps are being pulled after automatic installation last year
- Importantly, these particular interfaces are going, but the data is still accessible elsewhere
- Microsoft also wants you to use Copilot to find the information you need
Microsoft has confirmed that Calendar, People and Files are all becoming unsupported as of December 2026 after it started automatically installing them on Windows 11 devices with linked Microsoft 365 accounts in late 2025.
The vision was that users would be able to get quick access to important information like contact details through these lightweight apps – the company did not share the reason for pulling these companion apps.
Crucially, though, while the apps themselves may be going, the data behind them isn't. Data like contact details, for instance, are already stored elsewhere in the M365 cloud, so the companion apps are just one way to access the information.
Microsoft...
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