Personalised advertising involves sharing your behavioural and interest data with external companies, which extends the reach of your personal information beyond Microsoft to a broad network of advertisers and data brokers.
Microsoft collects a wide range of personal data — including location, voice recordings, search queries, browsing history, and content you create — across all its products and uses this data for advertising personalisation, AI training, and product improvement. Users with a Microsoft account have rights to access, correct, delete, and export their data, and can opt out of interest-based advertising, but many data uses are bundled under broad legitimate interest or contractual necessity grounds that cannot be individually declined. You can review, download, and delete your personal data, and adjust advertising and diagnostic data settings, by visiting the Microsoft Privacy Dashboard at account.microsoft.com/privacy.