Document collaboration and co-authoring - Microsoft Support
Discover the benefits to co-authoring documents in your organization and learn about versioning, checkin/checkout, and mixed Office environments.
Applies To:
SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint Server 2016, SharePoint in Microsoft 365, OneDrive (work or school), Microsoft Office, OneDrive (home or personal), OneDrive for Business, OneDrive for Mac, OneDrive for Windows
Microsoft Support
Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.
Collaborate on Word documents with real-time co-authoring
When someone shares a Word document with you, the email you receive includes a link that opens the document in your web browser: in Word for the web. Select Edit Document > Edit in Browser. If anyone else is working on the document, you'll see their presence and the changes they're making. We call this coauthoring, or real-time collaboration. From here, if you'd rather work in your Word app ...
Applies To:
Word for Microsoft 365, Word for Microsoft 365 for Mac, Word for the web, Word 2024, Word 2024 for Mac, Word 2021, Word 2021 for Mac, Word 2019, Word 2016
How to sign in to Hotmail - Microsoft Support
Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.
Applies To:
Outlook.com
What is Protected View? - Microsoft Support
Files from the Internet and from other potentially unsafe locations can contain viruses, worms, or other kinds of malware that can harm your computer. To help protect your computer, files from these potentially unsafe locations are opened as read only or in Protected View. By using Protected View, you can read a file, see its contents and enable editing while reducing the risks.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2024, Word 2024, PowerPoint 2024, Excel 2021, Word 2021, PowerPoint 2021, Excel 2019, Word 2019, PowerPoint 2019, Excel 2016, Word 2016, PowerPoint 2016
Automatically fix Windows security issues - Microsoft Support
Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features. Select the Download button on this page. In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Security Troubleshooter.
使用 Office 離線安裝程式 - Microsoft 支援服務
若要解決安裝 Microsoft 365時因連接速度緩慢或不可靠而可能會遇到的問題，請遵循下列方案專屬的步驟。 您必須連線到網際網路，才能下載安裝程式檔案。下載完成後，您便可以在方便的時候，以離線方式將 Microsoft 365 安裝在電腦上。 離線安裝程式步驟 下列步驟會因您的 Microsoft 365 產品是屬於 家用 ...
Applies To:
Office 2024, Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Microsoft365.com, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Microsoft Edge help & learning
Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.
在 Windows 上启用虚拟化 - Microsoft 支持
借助虚拟化，Windows 设备可以模拟不同的作系统，例如 Android 或 Linux。 通过启用虚拟化，可以访问更大的应用库，以便在设备上使用和安装。 如果将设备从 Windows 10 升级到Windows 11，则这些步骤可帮助你启用虚拟化。
Fix problems that block programs from being installed or removed
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.