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).

提示: 可以使用任何电话号码来请求安全代码。. 电话号码不需要与你的帐户关联。. 手机不需要是智能手机，也不需要连接互联网，只需要能够接收短信。. 你可能需要创建新密码。 阅读有关如何创建强密码的提示。. 如果看到“该 Microsoft 帐户不存在”错误消息，请使用 Microsoft 帐户登录帮助程序。

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.

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.

OneDrive for Business provides one place to store, share and sync your work or school files.

If OneDrive camera backup isn’t working. If automatic camera backup isn’t working, open the OneDrive app. Backups will only happen if the app is running, so swiping the app up to close it will prevent automatic backups.

Creating an online account usually involves entering your information into a form containing multiple fields, such as name, email address, date of birth, password, and more.

Select Notifications to expand it, and turn notifications, banners, and sounds on or off for some or all notification senders.

After you export your contacts, use Excel to open the CSV file and check that there's data. When you close the file, Excel will prompt you a few times with "are you sure you want to save it in CSV format?"

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