注意: 如果知道密码，但只想更改密码，请转到“account.microsoft.com 安全”选项卡，然后选择“更改我的密码”。. 如果知道用户名和密码但已停止工作，请阅读我的用户名和密码已停止工作。

Get productive quickly with Microsoft 365 videos and tutorials. Explore Microsoft 365 training guides and tips to collaborate with anyone, anywhere.

Existing Hotmail, Live, Outlook.com, and MSN addresses can't be added as aliases, and you can't add an alias that is already associated with another Microsoft account. It isn't possible to create a new alias using @hotmail, @live.com, or @msn.com.

了解如何在 Microsoft Edge 中启用 Adobe Flash。

Select a column with this problem. If you don't want to convert the whole column, you can select one or more cells instead. Just be sure the cells you select are in the same column, otherwise this process won't work. (See Use Paste Special and Multiply below if you have this problem in more than one column.)

Notes: You can either use an email address you own as a Microsoft account, or create a new address by choosing "Get a new email address" or "Use your email instead" when you sign up.

When File Explorer opens, you'll land in Quick access. Your frequently used folders and recently used files are listed there, so you won't have to dig through a series of folders to find them. Pin your favorite folders to Quick access to keep them close at hand. For more info, see Pin, remove, and customize in Quick access.

Tip: If you have a Microsoft 365 Family subscription, people you've shared the subscription with can also set up a personalized email address with your connected domain.After you've set up your domain, people you've shared with will see an option to add a personalized email address in the premium features section of Outlook settings.

如果你认为有人可能未经授权访问你的帐户，我们可以通过从所有受信任的设备注销来保护你。 在 24 小时内，你将注销浏览器、应用以及你的帐户用于登录的任何其他位置（Xbox 主机除外）。

Under Customize toolbar, for Show favorites bar, do one of the following:. To turn on the favorites bar, select Always.