Efficiency mode What is efficiency mode in Microsoft Edge? Efficiency mode is designed to help extend battery life. It minimizes power usage by reducing resource usage through modifying background tab activity and some foreground activity, as well as putting inactive background tabs to sleep after 30 minutes or less of inactivity (if Save resources with sleeping tabs is on).

Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content

Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

The following new and improved features have been implemented in Windows Installer 4.5. Multiple package transactionIn a multiple package transaction, you can create a single transaction from multiple packages.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

If you’re having trouble connecting to your wireless display or wireless dock, try the following to fix things: Make sure your Windows 10 device supports Miracast.

准备好安装了吗？ 在开始之前，请确保电脑或 Mac 满足 系统要求。. 如果你已兑换产品密钥，只需重新安装应用，或者知道你已通过工作或学校分配了许可证，则可以跳到登录部分 ，下载并安装 Microsoft 365 或 Office。 但是，如果是 首次 安装 Microsoft 365 或 Office，可能需要先执行一些步骤。

Check for updates in the Phone Link by opening Settings > About > Check for updates.Install any pending updates to make sure your content stays up-to-date. You may also need to check for updates in the Link to Windows app on your Android device.

了解如何接收从 Microsoft 购买的商品的退款或换货。

If you want to run Windows 7 on your PC, here's what it takes: 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor*