Learn how to use Xbox cloud gaming on various devices including Android, iOS, and Windows with this comprehensive guide.

Discover how to boost your browsing speed and save battery life with Microsoft Edge's performance features, such as sleeping tabs and efficiency mode.

查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。

Potentially unwanted applications (PUA) are a category of software that can cause your machine to run slowly, display unexpected ads, or at worst, install other software which may be more harmful or annoying.

Descubra como usar sua subscrição do Xbox Game Pass para compartilhar os benefícios com seus amigos em qualquer console Xbox.

了解如何注册你的 Xbox 产品，以便申请和跟踪维修，查看保修服务，以及购买延期服务计划。还有关于注销和取消链接设备的 ...

汇报默认屏幕和睡眠设置现在可帮助你更高效地使用能量并延长电池使用时间。 可以在 Windows 11 中找到效率设置 >系统 > 电源 & 电池。. 有关每个电源和电池设置如何提高设备性能的引导式演练，请单击按钮打开“获取帮助”应用：

Under Personalization & advertising, turn on or off the setting for Allow Microsoft to save your browsing activity including history, usage, favorites, web content, and other browsing data to personalize Microsoft Edge and Microsoft services like ads, search, shopping and news.

You can record your PowerPoint presentation—or just a single slide—and capture voice, ink gestures, and your video presence. The completed recording is like any other presentation.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.