激活 Office - Microsoft 支持
如何激活预安装在新 Windows 10 计算机上的 Office 或使用新的产品密钥。
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, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
在 Windows 中管理用户帐户 - Microsoft 支持
了解如何在 Windows 10 和 Windows 11 中添加用户帐户。 有了帐户之后，每个人都可拥有单独的文件、浏览器收藏夹和私人桌面。
Find the Xbox console ID, device ID, and serial number
Learn where to find the console ID, device ID, and serial number on your Xbox console.
Change the refresh rate on your monitor in Windows
Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.
Get started at Microsoft365.com - Microsoft Support
Learn how to sign into your Microsoft account at Microsoft365.com for working online from anywhere and using Microsoft365 on the web with the desktop apps.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Office 2013, Office for business
Restore deleted files or folders in OneDrive - Microsoft Support
Learn how to delete and restore files in OneDrive. Recover deleted files or folders from the OneDrive recycle bin.
Applies To:
OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, OneDrive (work or school), OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows
Microsoft Store & billing help
Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.
Filter websites and searches using Microsoft Family Safety
Use family safety settings to block inappropriate websites and searches on Windows, Xbox and mobile devices.
Applies To:
Microsoft Family Safety
Remove a device from your Microsoft account
See how to remove a device that you don't use but it still appears in your devices list.
Welcome to the MSN home page - Microsoft Support
The new MSN website brings you the best in online information and is uniquely yours.