Remarque : Si vous vous êtes connecté avec un compte Microsoft tel qu’un compte de messagerie Outlook.com, Hotmail, Live ou MSN au lieu de votre compte professionnel ou scolaire, déconnectez-vous, puis reconnectez-vous à l’aide du compte approprié. Vous ne savez pas avec quel compte vous êtes connecté ? Sélectionnez Gestionnaire de compte dans l’en-tête de navigation Outlook.

Download our Formulas tutorial workbook. We've put together a Get started with Formulas workbook that you can download. If you’re new to Excel, or even if you have some experience with it, you can walk through Excel’s most common formulas in this tour.

Notes: If you don't see Go to Microsoft Store on the Activation page, contact your organization's support person.. If you made a substantial hardware changes to your device (such as replacing the motherboard) and you have a valid product key, try to activate Windows by phone.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Choose Open all, or Open all in new window, or Open all in new InPrivate window.

Note: If a compatibility issue has been identified on your device that would disrupt your experience using Windows 11, we will temporarily delay your upgrade until the issue is resolved.Compatibility safeguard holds help ensure you have the best experience possible when upgrading and your productivity is not disrupted if critical apps or drivers are not yet compatible.

Проверьте сайт службы поддержки производителя вашего принтера. Чтобы найти его, найдите в Интернете имя производителя принтера и слово "поддержка", например "поддержка hp".

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.

Use Version History to view previous versions of files stored in OneDrive or SharePoint libraries.

Tip: If you believe someone has acquired your payment info, contact your bank or your payment provider to prevent more charges. Tell them your credit card has been stolen or compromised - If you only dispute the charges, there's nothing to prevent the fraudulent charges from happening again.