Why some files won't open in Internet Explorer. Internet Explorer uses add-ons such as Adobe Reader to view some files in the browser. If a file that needs an add-on won't open, you might have an older version of the add-on, which needs to be updated.

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).

Improve your meeting organization and effectiveness with meeting notes in Teams. Add agendas, notes, and tasks that can be viewed and edited by participants directly in Teams, with the option to share and edit them in Office.com. Optimize your meeting experience by editing notes before or after the meeting from your Teams Calendar or web browser.

Download and install the My Apps Secure Sign-in Extension. Download and install the My Apps Secure Sign-in Extension, if you're prompted. This extension helps you use your desktop browser to use single sign-on with your organization's cloud apps.

The primary function of any launcher to help you customize your home screen layout. So, when you download Microsoft Launcher, you can expect to see an updated look and feel on your phone—one that was carefully crafted to optimize simplicity, productivity, and delight.

如何在 Microsoft Edge 中管理隐私设置. 要更改跟踪防护级别、清除浏览数据、帮助改进 Microsoft Edge 等，请选择“设置及更多 ” > “设置 ” > “隐私、搜索和服务 ”。 要选择网站是否可以向你请求位置、相机、麦克风等权限，请选择“设置及更多 ” > “设置 ” > “站点权限”。

重要: 在尝试以下任意解决方案之前，请确保先备份你的个人文件。 你可以备份 Windows 电脑，或者插入 U 盘并使用文件资源管理器将重要文件拖动和复制到 U 盘。 如果你是使用 Microsoft 帐户登录到 Windows，系统设置将在连接到 Internet 后立即更新，然后自动还原。

Review the details under the Services & Subscriptions heading.. If you see a circle arrow, then your subscription is set up for recurring billing, unless you turn recurring billing off or cancel it beforehand. The next charge info shows you when you’ll be charged next, and for how much.

Screen time reporting shows daily and weekly details about when and for how long your family member used their devices. Gain insight into the amount of time your family member spends on a particular social media app, game or web browser and decide whether you would like to enable screen time limits for any connected devices. To view screen time for a family member, tap Today, then Screen time ...

需要有关 Xbox 主机、Xbox 游戏或 Xbox 网络的帮助?了解如何与我们联系。