Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

Battery Life: Lowering your refresh rate can save battery power by reducing the amount of energy your display consumes.This can be useful when you are using a laptop or tablet and want to extend your battery life.

如果这是你第一次安装 Microsoft 365，则可能需要先执行一些设置步骤。展开下面的 “了解详细信息”部分。 但是如果是重新安装 Microsoft 365，且已兑换了产品密钥并拥有与 Microsoft 365 相关联的帐户，请转到“登录并安装 Office”的部分。

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

If you try to add an IMAP account to Outlook, for example a Gmail account, Apple account, Yahoo account, or an account from your local ISP, and you're not prompted to enter your password, use the following steps to work around the problem.

Codecs allow you to play different formats of audio and video files. Media Player supports a wide variety of codecs. Most are included out of the box; some additional codecs can be installed from the Microsoft Store.

To check activation status in Windows 11, select the Start button, and then select Settings > System and then select Activation .. Your activation status will be listed next to Activation.. Check activation status in Settings. You'll see one of these activation status messages on the Activation page:

Free. A Free badge means an active Microsoft 365 Family or Personal subscription isn't associated with the account you signed in with. Only the free web versions of Word, Excel, and PowerPoint are available to you. To access these apps in your browser, all you need to do is to sign in to Microsoft365.com with your Microsoft account and select the app you need from the app launcher .

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

Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.