Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

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.

Project Online Professional或Project Online 高级版： 如果你订阅了Project的基于云的解决方案之一，则你将看不到安装它的选项，除非你有分配的许可证。如果你是负责分配许可证的 Microsoft 365 管理员，请参阅向用户分配许可证。

你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质，请转到软件下载网站，你可以在这里找到分步说明。在该网站上，你可以选择 Windows 版本，并使用 U 盘或 DVD 创建自己的安装介质。

To find touchpad devices, select Human Interface Devices or Mice and other pointing devices, then right-click the device you'd like to update.

OneDrive is built in to some versions of Windows and can't be uninstalled. But you can hide it and stop the sync process, so it stays hidden. To do this, turn off all the OneDrive settings and remove the OneDrive folder from File Explorer.

Hinweise: Ihr Hotmail- oder Outlook.com-Kennwort entspricht dem Kennwort Ihres Microsoft-Kontos. Wenn Sie sich anmelden können, aber Probleme mit Outlook.com haben, überprüfen Sie den Dienststatus.Wenn der Status nicht grün ist, warten Sie, bis der Dienst normal ausgeführt wird, und versuchen Sie es erneut.

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue.

如果你是学生或教师，并且你的机构未向你提供许可证，请了解你是否有资格 免费获取 Microsoft 365。 我无法使用工作或学校帐户登录 如果尝试使用工作或学校帐户登录 www.office.com，但登录遭到阻止，这可能意味着 Microsoft 365 管理员设置了阻止你登录该位置的安全策略。

Troubleshoot problems with Bluetooth accessories. If you can turn on Bluetooth but having problems pairing or using a Bluetooth accessory, try the following steps to try to fix common problems with Bluetooth accessories.