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。

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

Add voting buttons to a message so that recipients can vote; results are tracked automatically in Outlook.

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

Quick Assist lets someone you trust take over your Windows 10 or Windows 11 PC and fix a problem from wherever they are.

Learn how to install a scanner and use it to scan pictures and documents in Windows 10.

Learn how to download, install, and configure additional language packs for your version of Windows.

Use Find my device to locate and lock your lost or stolen Windows devices.

You can choose which apps will start automatically when you start your device.

Learn what you can do if you're not receiving account aign-in verification codes.