Learn how to turn off or uninstall OneDrive. OneDrive is built in to some versions of Windows and can't be uninstalled.

Get the steps for how to transfer photos and videos from your portable devices to your PC.

了解有关在 Windows 中创建和格式化硬盘分区的信息。 注意: 不能格式化当前正在使用的磁盘或分区（包括内含 Windows 的分区）。 “执行快速格式化”选项将创建新的文件表，但不会完全覆盖或擦除卷。

Learn how to find which version of Windows operating system your PC is running and device specifications.

Get help for the account you use with Microsoft and learn how to set up, protect and manage your services and subscriptions.

When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

The new Outlook for Windows brings the latest features, intelligent assisted capabilities and a new modern and simplified design to your Outlook app.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

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