For a personal Microsoft account, the correct control is on the Microsoft privacy dashboard:
- Go to the Privacy page and sign in.
- Open Expanded people suggestions or People suggestions.
- Set the toggle to Off.
When this setting is turned Off, expanded people suggestions should stop appearing and Microsoft clears the expanded people data.
If saved personal contacts still appear, that is expected. Saved contacts continue to be suggested unless the contact is deleted. Organization directory contacts can also still appear unless removed by the IT admin.
The available documentation confirms where to change the setting and what turning it off does, but it does not describe why the toggle would switch back to On after leaving the page.
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