Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

About Windows 11 in S mode. Windows 11 in S mode is a version of Windows 11 that's streamlined for security and performance, while providing a familiar Windows experience.

Use Remote Desktop on your Windows, Android, or iOS device to connect to a Windows 10 PC from afar. Here's how to set up your PC to allow remote connections and then connect to the PC you set up.

Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

请执行以下任一操作： 在 “翻译为 ”下拉列表中，选择要将页面翻译成的语言。 默认值是为Microsoft Edge设置的语言。

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Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.