获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

The dark theme changes the default bright background color in the new Microsoft Edge to a darker color, which is easier on the eyes in low-light environments or if you prefer less bright interfaces. Here's how to activate dark mode: Go to Settings and more > Settings .

To edit a PDF, open it in Word. This works best with PDFs that are mostly text. PDFs of book chapters or something that looks like a manuscript from a copier won't be formatted well in Word.

在您需要新增參與者的現有群組聊天中選擇或進行使用。 在 Teams 右上角的個人檔案圖片下方，選 取 [檢視並新增參與者 ，然後選擇 [ 新增人員 ] 。 選取新增的參與者名稱，然後選擇是否要包含多少聊天記錄。

Note: If you selected Delete unread copies and replace with a new message, the original message opens for editing.When you select Send, the original email message will be deleted from the recipient’s mailbox and replaced with the newly edited one.

為您的群組聊天命名，以協助釐清交談的主題。 視訊通話. 開啟或關閉視訊通話。 音訊通話 開啟或關閉音訊通話的音訊。 共用螢幕 與群組聊天中的參與者共用您的螢幕。 檢視及新增參與者 檢視參與者清單，並將人員新增至群組。

Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Note: If you use a Manual Table of Contents style, Word won't use your headings to create a table of contents and won't be able to update it automatically. Instead, Word will use placeholder text to create the look of a table of contents so you can manually type each entry into the table of contents.

Safe mode starts Windows with a minimal set of drivers and services to help troubleshoot issues. If a problem doesn't reappear when you start your PC in safe mode, you can eliminate the default settings and basic device drivers and services as possible causes.