了解如何从 Windows 10 家庭版升级到 Windows 10 专业版或从 Windows 11 家庭版升级到 Windows 11 专业版，包括如何使用有效产品密钥或 Microsoft Store。

Windows devices may get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR).. Windows will let you know if you need to restart your device to complete an update, and you can choose a time that works best for you to complete that update.

Tipp: Wenn Sie einen drahtlosen Grafikkartenadapter verwenden, schließen Sie den Adapter an einen HDMI-Anschluss an neueren Fernsehern an, und verbinden Sie ihren PC dann drahtlos mit dem Adapter.Nachdem Sie den Adapter für die drahtlose Anzeige an Ihren Fernseher angeschlossen haben, wechseln Sie zu Ihrem Windows 11 PC, drücken Sie Windows-Logo-Taste + K, um Cast zu öffnen, und wählen ...

Whether you're at home, work, or out and about, chances are you'll find a Wi-Fi network that you can connect to for internet access. Select the Network, Sound, or Battery icons ( ) on the far right side of the taskbar to open quick settings. The Disconnected icon appears when you’re not connected.

详细了解有关 Windows 10 版本 2004 的更新，包括改进和修复、任何已知问题以及如何获取更新。

Email addresses and phone numbers associated with your Microsoft account are called aliases and they use the same contacts, online storage, subscriptions, and account settings.

In the following countries, you have the right to cancel a subscription that has recurring billing with immediate effect and receive a prorated refund as described in the Microsoft Consumer Subscription Prorated Refund Policy:

本文介绍 Microsoft Excel 中 TIMEVALUE 函数的公式语法和用法。. 说明. 返回由文本字符串表示的时间的十进制数字。 十进制数字是一个范围在 0（零）到 0.99988426 之间的值，表示 0:00:00 (12:00:00 AM) 到 23:59:59 (11:59:59 P.M.) 之间的时间。

If this is the first time you're installing Microsoft 365 or Office, you may have to complete a set of pre-installation steps or you may need to follow different steps than what's shown below.

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.