Training: With OneDrive, you can sync files between your computer and the cloud, so you can get to them from anywhere.

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

How to change your Outlook signature or add a signature. Whether it’s a new job title (congratulations!) or a phone number change, make sure you keep your email message signature up-to-date.

Learn how to install and use OneDrive to sync files between your Windows device and the cloud.

To change your speaker, microphone, or camera settings in a Teams meeting or a call, go to Device settings.

Important: The row-major calculation order also applies across worksheets within a workbook and is based on the order of the worksheets within the workbook.If you use multiple worksheets to analyze data with Python in Excel, make sure to include data and any variables storing data in cells and worksheets preceding the cells and worksheets that analyze that data.

The files you store on a SharePoint site are usually available to everyone with permissions to the site, but you may want to share specific files or folders with people who don't otherwise have access to the site.

Learn how to remove passwords from your Microsoft account to increase security.

Learn how to locate and use Microsoft Picture Manager, or explore alternative photo management solutions on Windows.