Learn how to upgrade Windows 10 Home to Windows 10 Pro to access more advanced security and networking features.

Learn how to keep your Microsoft account safe, including making a strong password, identifying safe emails, and reviewing account activity.

Learn how to use a third-party email address with your Microsoft account for access to various Microsoft products and services.

如果在设置中打开用与首选语言不同的语言编写的页面，Microsoft Edge会自动提示你翻译它。 转到用外语编写的网页时，“翻译”图标 显示在地址栏中。 如果语言未包含在设置中的首选语言列表中，则该语言被视为外在语言。

Provides information for avoiding and reporting Microsoft technical support scams.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

了解如何兑换礼品卡、代码或 Office 产品密钥，以及如何在 Microsoft Store 在线商店、Windows 或 Xbox 上花费余额。

Learn how you can manage cookies and site data you've temporarily allowed in Microsoft Edge.

If you are an identity provider or a website owner who doesn't rely on Microsoft’s enterprise or consumer identities, Microsoft Authenticator app can still help you secure the identities of your users who use two-step verification.

Description. The ROUND function rounds a number to a specified number of digits. For example, if cell A1 contains 23.7825, and you want to round that value to two decimal places, you can use the following formula: