The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

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.

從 [概觀] 頁面選取 [Office 應用程式]，然後在該頁面上尋找您要安裝的 Microsoft 365 產品，然後選取 [ 安裝]。 若要以不同的語言安裝 Microsoft 365 ，或安裝 64 位版本，請使用下拉式清單來尋找更多選項。選擇您想要的語言和位元版本，然後選取安裝。

了解如何访问和管理 Windows 登录选项。 使用密码、Windows Hello或安全密钥解锁设备。 你的生物识别数据将保留在你的设备上，直到你将其删除。 但是，在长时间Windows Hello处于非活动状态后，系统会提示确认是否要继续存储生物识别数据。

If you are planning to use Teams free or if you were a guest in an org, you can connect and collaborate by downloading and installing another version of Microsoft Teams (work or school) and signing in with your Microsoft account or the guest account where the invite was sent to.

Learn how to access the Control Panel in Windows for managing your system settings and programs.

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

An upgrade moves your PC from a previous version of Windows—such as Windows 7 or Windows 8.1—to Windows 10. An upgrade can take place on your existing device, though Microsoft recommends using Windows 10 on a new PC to take advantage of the latest features and security improvements.

Microsoft 365 for business If your business subscription plan includes the desktop version of the Microsoft 365 apps you won't see an option to install it unless someone in your organization assigned a license to you.. Learn how to check this in What Microsoft 365 business product or license do I have? or if you're a Microsoft 365 admin responsible for assigning licenses to people in your ...

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