Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

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

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

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.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

Learn new and useful keyboard features, tips, and tricks for Windows with this overview from Microsoft Support.

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

Go to Settings > Apps > Apps & features to change whether you're shown app recommendations when trying to install apps from outside the Store.

We're committed to delivering continuous innovation by releasing new features and enhancements into Windows 11 more frequently. Windows devices get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR). ...

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.