Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

Téléchargez et installez ou réinstallez Microsoft 365 ou ...

Tip: If you're a Microsoft 365 Family or Personal subscriber you get Microsoft Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription.Learn more at Getting started with Microsoft Defender.

Choose number of pages to print per sheet: Printing multiple pages on a single sheet of paper is a useful technique to save paper, reduce printing costs, and create compact versions of your documents. The number of pages that can be printed on a single sheet depends on the capabilities of your printer and the printing options you choose (Example: 1, 2, 4, 6, 9 or 16 pages per sheet).

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When you get a new device and start up Windows 10 for the first time, the antivirus protection that comes installed with the device is your default security app.