Find answers to frequently asked questions about Office 2021 and Office LTSC for Windows and Mac on the official support page.

更改第一页上的页眉或页脚，或者文档中的任何其他页面。

Here's how to change the size of text, images, and apps in Windows. To change your display in Windows, select Start > Settings > Ease of Access > Display.To make only the text on your screen larger, adjust the slider under Make text bigger.To make everything larger, including images and apps, choose an option from the drop-down menu under Make everything bigger.

若要捕获视频截图，请打开“截图工具”，选择“ 录制 ”按钮，然后选择“ 新建录制”，或按 Windows 徽标键 + Shift + R。选择要录制的屏幕区域，然后选择“ 开始”。完成后，选择“ 停止”。此时，可以按原样保存录制内容，或在 Clipchamp 视频编辑器中选择“在 Clipchamp 中编辑 ”以使用录制内容。

Use family safety settings to block inappropriate websites and searches on Windows, Xbox and mobile devices.

Learn how to change your gamerpic, including how to upload a customized image for your profile from your Xbox console.

Before you begin filling out the form. The steps below will help guide you when filling out the account recovery form. It can be a lengthy process as it's designed to ask questions about your account that only you can answer.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Find out how to install the latest driver for your printer. If you recently upgraded Windows, your printer driver might need to be reinstalled.

为字词及其之间的空格添加下划线. 为文本添加下划线的最快方法是按 Ctrl+，然后开始键入。 如果想要停止下划线，请再次按 ...