Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.

Find everything you need to manage your Microsoft account, XBOX profile, and more.

安装媒体（如 U 盘）可用于安装 Windows 的新副本、执行 Windows 的全新安装或重新安装 Windows。 若要创建安装媒体，请转到 软件下载网站，可在其中找到分步说明。 在该网站上，可以选择 Windows 版本并在 USB 闪存上创建安装媒体。 或者，可以创建一个 ISO 文件，用于虚拟机 (VM) ，或用于将安装媒体 ...

Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

打开“设备管理器” 选择“ 开始 ”，输入 “设备管理器 ”。 然后，从搜索结果中选择 “设备管理器 ”。

Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows.

Fix Bluetooth disappeared in Windows Solution 2: Install the latest Bluetooth drivers Check for updated drivers: Right-click Start > Device Manager. In the Device Manager window, select Bluetooth, and then locate your Bluetooth adapter (its name may include the word "Bluetooth" or "Radio"). Press and hold (or right-click) the Bluetooth adapter, and then select Update driver > Search ...

Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.

Hey XBOX Insiders! We are releasing a new XBOX Update Preview to the Omega ring today. Continue reading below to learn all about what's included with this update.