获取有关 32 位和 64 位版本的 Windows 的一些常见问题解答。 如果要将 Windows 从 32 位版本升级到 64 位版本，需要重新格式化硬盘、安装 64 位版本的 Windows，然后重新安装设备上的所有其他内容。

完全关闭电脑 若要关闭，请选择" 开始"， 然后选择" 电源 > 关闭"。 睡眠 睡眠使用非常少的电源，你的电脑启动速度更快，你可以立即返回到你离开的地方。 不必担心因电池耗尽而丢失工作，因为如果电量不足，Windows自动保存所有工作并关闭电脑。

在电脑重启后，你将看到一列选项。 选择“4” 或按 F4 以在安全模式下启动电脑。 或者，如果需要使用 Internet，请选择 “5 ”或按 F5 以使用网络实现安全模式。

Discover the latest features and improvements in Word 2019 for Windows, including smart writing assistance and collaboration tools.

With External Access for Teams, you can add or invite anyone outside of your Teams org who uses Teams, Teams for personal use, Skype (for consumers), and Skype for Business to a one-to-one chat.

Cocreator 是 Microsoft 画图应用中的一项新功能，它允许你借助 AI 创建令人惊叹的插图。 可以输入文本提示并开始在“画图”画布上绘图，Cocreator 将在绘图时根据输入生成漂亮的插图。

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

Learn about HDR capabilities in Windows 11 to bring a wider range of colors and details to your display.

Learn how to update your Xbox console offline.

You can use Microsoft Office Excel to create and edit connections to external data sources that are stored in a workbook or in a connection file. By using the Workbook Connections dialog box, you can easily manage these connections, including creating, editing, and deleting them. Data in an Excel workbook can come from two different locations.