Create Windows 11 installation media. On the Windows 11 software download page , select Create tool now and follow the instructions to install Windows 11. Warning: Microsoft recommends against installing Windows 11 on a device that does not meet the Windows 11 minimum system requirements.

Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

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

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Set the region, device language, and spoken language for your products and services.

If a device is updating from Windows 10, version 1909 or an earlier version, this feature update enablement package cannot be manually installed. Instead, it is bundled and automatically included with the feature update to Windows 10, version 22H2.

Looking for help? For help from an agent, follow the Get help link below to chat or request a call—we’ll call you so you don’t have to wait. For even faster help, search for your topic on our site.

Calculation operators and order of operations. Create a simple formula to multiply and divide in an Excel spreadsheet. You can multiply two or more numbers in one cell or multiply and divide numbers using cell references. All formulas in Excel begin with an equal sign (=).

升级不同于更新，因为它会将电脑从上一版本的 Windows（如 Windows 10）升级到 Windows 11。. 本常见问题解答旨在解决有关升级到 Windows 11 的问题。. 更新可确保当前版本的 Windows 具有最新功能和安全性改进。. 如果希望更新你的设备并且需要更多信息，请参阅 Windows ...