Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Microsoft 365 help & learning
Get Microsoft 365 support, help, and learning resources. Organize your life, expand your creativity, and protect what’s important with Microsoft 365.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Microsoft 365 for home, Microsoft 365 for Mac, Microsoft 365 for Windows
Blocked attachments in Outlook - Microsoft Support
One of the most common ways of transmitting computer viruses is through file attachments. To help protect you and your recipients against computer viruses, Outlook blocks the sending and receiving of certain types of files (such as .exe and certain database files) as attachments.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Cancel a Microsoft 365 subscription - Microsoft Support
Cancel Microsoft 365 with the help of a support advocate. If you're thinking of cancelling a Microsoft 365 subscription or need help switching to another plan that better meets your needs, support agents are available to help. Request a call back.
Create a folder or subfolder in Outlook - Microsoft Support
Create a top-level folder in new Outlook. In the folder pane on the left, right-click your email address, or hover over it and select More options > Create new folder. Enter a name for the new folder, then press Enter.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows
Remove an attachment - Microsoft Support
If you want to remove an attachment from an email message you've received from someone else or a message you've sent, you can do this one message at a time. You cannot remove attachments from multiple messages at once.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Create and share news on your SharePoint sites
In SharePoint, you can add news posts from your SharePoint start page. At the top of the SharePoint start page, click Create news post. Choose the site where you want to publish your news post. You'll get a blank news post page on the site you chose, ready for you to fill out.
Applies To:
SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint in Microsoft 365, Microsoft 365 admin
Synchronize Outlook and Apple iPhone or iPod touch calendars
Sync your Outlook calendar with your iOS device. Connect your iPhone or iPod touch to your computer using the cable provided with your device or by placing the iPhone or iPod touch in the Apple Universal Dock. iTunes opens automatically when connected to your computer.
Applies To:
Outlook for Microsoft 365, Outlook 2019, Outlook 2016, Outlook 2013, Outlook 2010, Outlook 2007
登入 Office - Microsoft 支援服務
試用引導式支援. 從網頁瀏覽器登入 www.office.com ，並開始使用網頁版應用程式，或存取其他與您帳戶關聯的 Web 服務 (例如 OneDrive)。. 您登入已安裝之 Office 應用程式的方式取決於您的裝置。. 提示: 若要將電子郵件帳戶新增至 Outlook 或取得登入 Outlook.com 的說明 ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel for the web, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, OneNote for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Project Online, Microsoft 365 for Mac
为纯本地 Exchange 用户启用新式身份验证 - Microsoft 支持
Microsoft Exchange Server 2019 累积更新 13 (CU13) 引入了对 OAuth 2.0 (Exchange Server 的支持，也称为新式身份验证) ，适用于使用 Active Directory 联合服务 (AD FS) 作为 STS) 安全令牌 (服务的纯本地环境。. 若要使用此功能，必须使用 Microsoft Outlook 或使用 AD FS 支持新式身份验证的 ...