Erneutes Installieren von Microsoft 365. Wenn Microsoft 365 ursprünglich vorinstalliert war und Sie es auf demselben Gerät oder einem neuen Gerät neu installieren müssen, sollten Sie bereits über ein Microsoft-Konto verfügen, das Ihrer Kopie von Microsoft 365 zugeordnet ist.

Learn how to find your Windows product key for activation or when to use a digital license instead.

了解如何使用电脑健康状况检查应用来帮助提高设备性能。 如果当前正在运行 Windows 10，则电脑健康状况检查将对设备进行全面的资格检查，以确保其满足 Windows 11 最低系统要求。 你将收到有关设备为何符合或不符合条件的信息，以及有关设备不符合要求时可执行的操作的信息。

Based on your feedback, we’ve added a new input field in the Colors dialog for Hex color values. No need to convert Hex color values into RGB values. For any property where you can define a color, you can now enter a Hex color value in the Hex box, for example, #0F4C81 or 444.

Unlike in previous versions of Windows, you’ll need to use the media creation tool to create an ISO file to install Windows 10. Make sure you have a license to install Windows 10, and then follow these steps:

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.

Note: The TEXT function converts numbers to text, which may make it difficult to reference in later calculations.It’s best to keep your original value in one cell, and then use the TEXT function in another cell. Then, if you need to build other formulas, always reference the original value and not the TEXT function result.

如果無法登入您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶，或者您不確定如何登入或登出，請嘗試這些解決方案。 若要在 Outlook.com 中取得支援，請按一下這裡或選取功能表列上的 [說明]，然後輸入您的查詢。如果自助無法解決問題，請向下捲動至 ...

When you first sign into Microsoft Defender on Android, we'll walk you through a few easy steps that start with setting up web protection.During this process, we'll ask you to give Defender permission to do two things: run in the background and use the Accessibility Service.