Office または Microsoft 365 を購入したときにプロダクト キーが付属していた場合は、使用している製品に対応する以下の Web サイトのいずれかにプロダクト キーを入力します。

为帮助消除困惑或误解，我们解答了有关强制措施如何影响你在 Xbox 网络上玩游戏的一些最常见问题。

Learn how to connect a Bluetooth device in Windows and adjust Bluetooth pairing settings.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

在手机或平板电脑上使用 Outlook for Android，添加基于 Outlook.com、Microsoft 365 和 Exchange 的电子邮件或者 IMAP 或 POP 电子邮件帐户。

The customizable Quick Access Toolbar contains a set of commands that are independent of the currently displayed tab on the ribbon. You can move the Quick Access Toolbar from one of the two possible locations, and you can add buttons that represent commands to the Quick Access Toolbar.

Try it! Microsoft 365 subscribers can set up automatic replies for when they are out-of-office or unavailable to respond to email. Select File > Automatic Replies.

If you have a list of data you want to group and summarize, you can create an outline of up to eight levels. Each inner level, represented by a higher number in the outline symbols, displays detail data for the preceding outer level, represented by a lower number in the outline symbols.

Learn how to manage the online safety and privacy settings on the Xbox console for you and every member of your family group.

Learn how to open, navigate, and troubleshoot File Explorer in Windows, with answers to common questions and support assistance.