Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.

Use Outlook in the new Microsoft Edge. In Microsoft Edge, sign in to your Outlook on the web or Outlook.com account.

Contact Microsoft Office Support. Professional Direct Support for Microsoft 365 provides additional advisory support and proactive services to help plan, implement, maintain, and optimize Microsoft 365 solutions that align to your business's needs, as well as reactive support to assist you along the way.

Select Start > Settings > Personalization.The preview window gives you a sneak peek of your changes as you make them. In Personalize your background, you can select a picture, a solid color, or a slideshow of pictures you create.Or you can choose Windows spotlight to see a new image from around the world every day.

Download Windows Media Player. Get Windows Media Player for your version of Windows, or learn how to play Windows Media files on your Mac. Get the details here.

在您需要新增參與者的現有群組聊天中選擇或進行使用。 選取Teams右上角的個人檔案圖片下方 檢視並新增參與者 。 您會在它旁邊看到一個小數字，顯示群組中目前有多少成員。

注意: 如果允许组织与这些组织通信，则限制或阻止彼此通信的不同组织的聊天参与者可能是群聊的一部分。 将参与者添加到现有群组聊天 将外部访问参与者添加到已包含至少一个外部访问参与者的现有聊天或正在进行的聊天。

To zip (compress) files. In the search box on the taskbar, type file explorer, and then select it from the list of results.Right-click the file you want to zip, and then select Send to > Compressed (zipped) folder.. To decompress files. Open File Explorer and find the compressed folder.

Having trouble using Microsoft Teams? Help solve your peskiest issues and frequently asked questions (FAQs) with this troubleshooting guide.

Summary. MSN is the Microsoft information and entertainment network. MSN offers Internet subscriptions and services. This article describes how to contact MSN Customer Support.