How to open the Camera app in Windows. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened.. Open Camera

再次单击三角形以展开文档的该部分。 若要折叠或展开文档中的所有标题，请右键单击标题，然后单击展开 /折叠 > 展开所有标题 或 折叠所有标题。. 关闭并重新打开文档时，标题默认会展开。

如果要在现有的 Outlook.com 帐户中使用新的电子邮件地址，请按照本文中的说明创建电子邮件别名。 这将为您提供一个额外的电子邮件地址，该地址使用相同的收件箱、联系人列表和帐户设置作为您的主电子邮件地址。

If your account has been hacked, use our sign-in helper tool below to help guide you to the right solutions. The tool will ask for your email address or phone number, and either show appropriate self-help, or offer the chance to talk to an agent.

To start enjoying Microsoft Rewards, you just need a Microsoft account.It connects you to all things Microsoft with one simple logon. Sign up now by going to Microsoft Rewards.Select Sign up for free and follow the steps to create a Microsoft account.. If you already have a Microsoft account, great!

The files on your OneDrive are private until you share them. Keep in mind that when you share folders with Edit permissions, people you share with can add the shared folders to their own OneDrive.. This lets them keep the folder alongside their own folders and items, easily move items between folders, and more easily work on it offline.

了解如何减小 PowerPoint 演示文稿的大小。

Battery Life: Lowering your refresh rate can save battery power by reducing the amount of energy your display consumes.This can be useful when you are using a laptop or tablet and want to extend your battery life.

答复 仅将新邮件发送给原始发件人。不包括附件。 “全部答复” 会将新邮件发送到“收件人”和“抄送”行上的原始发件人和所有其他收件人。不包括附件。 转发 允许你键入一组全新的收件人。转发邮件时，将自动包含原始邮件中包含的任何附件。 为什么回复邮件时未包含附件？

To activate Windows 10 using an internet connection: As Windows 10 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > Update & Security > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows 10.