Learn how to find your Windows product key for activation or when to use a digital license instead.

Important: Before trying any of the solutions below, make sure you back up your personal files. You can back up your Windows PC, or insert a USB drive and use File Explorer to drag and copy important files to the USB drive.If you’re signing into Windows with a Microsoft account, your system settings will be automatically restored after updating, once you’re connected to the internet.

Make the everyday easier with Windows 11. When there's a lot to do, Windows 11 helps you get it done. With intuitive navigation and new multitasking tools, it brings you the performance you want and the security you need.

At Microsoft, we're guided by our AI principles, our Responsible AI Standard, and decades of research on AI, grounding, and privacy-preserving machine learning.Data privacy and security is a key principle of responsible AI. We aim to help our customers use our AI products responsibly, sharing our learnings, and building trust-based partnerships.

The easiest way to get language packs for Windows 8.1 and Windows RT is to download and install them using the Language Control Panel. Download and install additional languages to view menus, dialog boxes, and other user interface items in your preferred language.

To do this. Press. Move to the Tell Me or Search field on the Ribbon to search for assistance or Help content.. Alt+Q, then enter the search term. Open the File page to use Backstage view.. Alt+F. Open the Home tab to use common formatting commands, paragraph styles, and the Find tool.. Alt+H. Open the Insert tab to insert tables, pictures and shapes, headers, or text boxes.

To increase security and performance, Windows 11 in S mode only runs apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, or if you have Windows 10 Pro, Enterprise, or Education and want to upgrade to Windows 11, you'll need to permanently switch out of S mode.

若要了解有关清除浏览器数据的详细信息，请查看和删除 Microsoft Edge 中的浏览器历史记录。 登录以在移动设备上同步帐户 在移动设备上设置同步. 下载适用于 iOS 和 Android 的 Microsoft Edge 应用。 输入你的手机号码，我们会将下载链接发送至你的手机。

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

在开始之前，请确保你的 Windows 10 电脑支持蓝牙。 有关如何检查的详细信息，请参阅修复 Windows 10 中的蓝牙问题。 如果需要帮助添加没有蓝牙功能的设备，请参阅将设备添加到 Windows 10 电脑。 打开蓝牙. 检查你的 Windows 10 电脑是否支持蓝牙后，需要将其打开。