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Find the information you need to build, run, and grow your small business with Microsoft 365. Visit Small business help and learning. Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

To create the formula: Type =SUM in a cell, followed by an opening parenthesis (. To enter the first formula range, which is called an argument (a piece of data the formula needs to run), type A2:A4 (or select cell A2 and drag through cell A6). Type a comma (,) to separate the first argument from the next. Type the second argument, C2:C3 (or ...

If the Get Help app is unable to resolve your sound or audio issue, try the possible solutions listed: 1. Check your speaker output. 2. Run the audio troubleshooter. 3. Verify that all Windows Updates are installed. 4. Check your cables, plugs, jacks, volume, speaker, and headphone connections.

基于 Chromium 的新版 Microsoft Edge 已于 2020 年 1 月 15 日发布。 它与 Windows 和 macOS 的所有受支持版本兼容。 新版浏览器具备出色的速度和性能、适用于网站和扩展的一流兼容性以及内置的隐私和安全功能，可全面满足你的需求。

Xbox 订阅取消和退款. 你可以随时取消 Xbox 订阅。. 关闭定期计费将停止订阅的未来扣费，并使你在订阅到期之前使用其权益。. 你也可能有资格立即取消并获得退款；但不是所有订阅费用都能退款。. 了解如何在下面的“取消订阅”部分中取消 Xbox 订阅并检查退款 ...

大多数网站在新式浏览器上都能更好地工作。. 对 Internet Explorer 的支持已于 2022 年 6 月 15 日结束。. 建议仅在必要时才在Microsoft Edge中使用Internet Explorer模式。. 有关详细信息，请参阅 详细了解 Microsoft Edge 。. 要打开 Internet Explorer 模式，请按照下列步骤操作。. 在 ...

输入沉浸式阅读器. 若要进入阅读模式，请导航到要在 Microsoft Edge 中阅读的网站，然后从地址栏中选择 “输入沉浸式阅读器 ”。. 你可能在所有页面的地址栏中看不到沉浸式阅读器，但这并不意味着页面无法在沉浸式阅读器中打开。. 网页可能不是文章，或者在 ...

Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

下载并安装或重新安装 Office 2019、Office 2016 或 Office 2013. Office 2019 Office 2016 Office 2016 for Mac Office 2013. 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 ...