A Microsoft 365 group is different from a contact group (formerly called a distribution list). A contact group is a set of email addresses that you can use to send an email message or meeting invitation to everyone at once. To create a contact group, see Create a contact group.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Lock or unlock specific areas of a protected worksheet. You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

Import to Outlook app. Import contacts from a CSV file. Import email, contacts, and calendar from a PST file. Import contacts from an Excel spreadsheet. Import contacts from iCloud (vCard .VCF file)

If you are trying to set up an Exchange account in Outlook, ask the organization that gave you the email address for the name of your Exchange server. It's standard for them to provide you with this information so you can add your email address to a computer or phone.

Find your notifications. Windows 11 puts notifications in Notification Center—right on the taskbar—where you can get to them instantly. Notifications at a glance. Select the date and time in the taskbar to open the Notification Center.

Microsoft 365 群組 是一種服務，可搭配您已使用的工具 Microsoft 365 讓您能夠與您的小組成員共同作業，包括撰寫文件、 建立試算表、 處理專案計劃、 排程會議或傳送電子郵件。 本文會協助介紹群組的功能，並提供後續步驟的實用連結。

在 Lync 中，群組是您建立的連絡人集合，讓您可以快速在顯示中查看多位連絡人，或同時與他們進行通訊。 您決定您需要的群組以及群組的成員。

To share a file in File Explorer on Windows 11, select the file, then select Share on the ribbon. You can also right-click (or press and hold) on the file > Share. Then, choose how you want to send the file and follow the process for that option.