These instructions may help with troubleshooting activation by removing all Office license files from your Mac. For example, if you previously installed a one-time purchase of Office for Mac and have switched to Microsoft 365, you may not be seeing subscription features because your copy of Office is still using your old license.

Under My Files, pick a file or folder by selecting the circle in the upper corner of the item, and then select a command at the top of the page.

大多数打印机都需要安装最新的打印机驱动程序，以便打印机正常运行。 如果你最近从较早版本的 Windows 升级，你的打印机驱动程序可能适用于以前版本，但可能无法使用 Windows 10 正常运行或根本不能运行。

On the sticker at the back of the console (the bottom of the console for Xbox One). In your settings. Select Profile & system > Settings > System > Console info.The serial number appears first in the list displayed.

提示: 登入時，如果您下次想要直接移至信箱，請在 [保持登入?] 提示中選取 [是] (不建議用於共用電腦)。 或者，選取 [不要再顯示這個] 方塊，然後選取 [否]，這樣每次都會提示您輸入密碼。. 如果您無法登入或忘記您的使用者名稱或密碼，請使用我們的 [登入疑難排解員]。

Unplug the network cable from the back of your console. Inspect the cable’s connector and the Xbox console’s socket to make sure that they are clean and free of debris.

Contatta il Supporto tecnico Microsoft. Trova soluzioni a problemi comuni, oppure ottieni assistenza da un operatore del supporto.

Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

了解如何下载、安装和配置 Microsoft 365 语言配件包，以向 Microsoft 365 添加其他显示、帮助和校对工具。

注意: 带 USB Type-C 连接器的电脑具有更高的功率限制。 如果连接器支持 USB 电力传输，则其能够以更大的功率实现更快速充电。. 要更快地充电，你的电脑、充电器和线缆均必须符合行业标准。