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).

Controller serial numbers are 14 characters long and don’t include dashes. Your controller serial number may not be recognized if you’ve never connected your controller, or if you connected for the first time within the last 48 hours.; If you have the Xbox Elite Wireless Controller Series 2, the 14-character serial number is in the lower center on the back of the controller.

Learn more about updates for Windows 10 version 1903, including improvement and fixes, any known issues, and how to get the update.

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.

The Xbox app on PC relies on two Microsoft accounts: the Microsoft Store account, and the Xbox account (your PC gaming account). The Microsoft Store account provides access to owned games, subscription benefits, and other Xbox app purchases made by that account. The Xbox account is used for game streaming access, in-game purchases, achievements, and friends.

在“ 幻灯片母版 ”选项卡上，单击“ 字体 ”下拉菜单。 选择要用于演示文稿中所有幻灯片的字体。 无需从菜单上的预定义字体对中进行选择;选择菜单底部的“ 自定义字体 ”，选择自己的字体。

If you open a page written in a different language than your preferred languages in settings, Microsoft Edge will automatically prompt you to translate it. The Translate icon appears in the address bar when you go to a web page that’s written in a foreign language. A language is considered foreign to you if it's not included in your Preferred languages list in Settings.

如果你在下载和安装 Windows 更新时收到错误代码，更新疑难解答可以帮助解决该问题。 选择“开始 ”>“设置> ”>“更新和安全 ”>“疑难解答”>“其他疑难解答”。 接下来，在“启动并运行”下，选择“Windows 更新” > “运行疑难解答”。 运行完疑难解答后，最好重启设备。

兼容性设置. 描述. 在 兼容模式下运行此程序. 使用早期版本的 Windows 中的设置运行程序。 如果你确信此程序是为某个特定版本的 Windows 而设计（或与该版本共同使用），请尝试使用此设置。

New to Xbox gaming on PC? Here's how to get started.