Important: If you want to delete the last or the only email account you have in classic Outlook for Windows, you'll receive a warning that you must create a new location for your data before removing the account.For more information, see Create an Outlook Data File.

Si vous installez Windows sur un nouvel appareil ou une carte mère pour la première fois et que vous n’avez pas de clé de produit, sélectionnez Je n’ai pas de clé de produit pendant les écrans d’installation. À l’invite, entrez le compte Microsoft à utiliser pour acheter une licence numérique pour cet appareil.

Note : Once you've signed in, Skype will remember your sign in information when you close Skype or sign out and choose to remember your account settings. If you don't have a Skype or Microsoft account: Visit Skype.com from your browser and download Skype.

Click a template to see a preview. Click the arrows on the side of the preview to see more templates.

Start page numbering on Page 3 - double-sided printing. If the first page of your document is a cover page, the second page is a table of contents, and you want the third page to show “Page 1”, see Start page numbering on Page 3 - double-sided printing.

Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.

Note If the price for your Xbox subscription has changed, it may be because the subscription renewed after a trial or promotional rate to the full rate. You should be notified ahead of time if the full rate for a subscription changes for your region.

Training: Microsoft Teams is a collaboration app built for hybrid work to help you and your team stay informed, organized, and connected. Learn how in this video.

如何激活预安装在新 Windows 10 计算机上的 Office 或使用新的产品密钥。

Use date and time functions to create formulas that return serial numbers, display a specific date or time, or that calculate the difference between dates or times.