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).

Press and hold (or right-click) the MP4 file you want to play, select Open with, and then choose your preferred file player from the list of applications.

In Windows 10, action center is where you'll find your app notifications and quick actions—which give you quick access to commonly used settings and apps.

Manually download a language for Cortana speech. Go back to Settings > Time & language > Language, select your new language, and then use the up-arrow button to move it to the top of the list and make it the default.

Browse on the go with the new Microsoft Edge for Android and iOS devices. Microsoft Edge offers better protection and privacy, and can sync your favorites, passwords, and more across your desktop and mobile devices.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Note: In the following countries, you can cancel your subscription, and depending on the subscription length you may be entitled to a prorated refund.See Countries with prorated refunds for Microsoft subscriptions for more information. Any subscription length - Canada, Israel, Korea, and Turkey Subscriptions longer than 1 month and renewed - Denmark, Finland, Germany (purchases on or after ...

仅当具有 Microsoft 365 订阅时，此功能才可用。 如果你是 Microsoft 365 订阅者，请确保拥有最新版本的 Office。 要以副本或 PDF 形式发送演示文稿，请选择“共享”。

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本文介绍如何续订 Microsoft 365 订阅以供个人或家庭使用，以及 续订后可以执行的操作。 它还提供了 详细的故障排除帮助。. 如果需要有关管理付款的帮助，请参阅 添加、更新或删除信用卡和其他付款方式。. 如果要在续订之前检查价格，请参阅为你选择合适的 Microsoft 365。