使用 Microsoft 登录
登录或创建帐户。
你好,
使用其他帐户。
你有多个帐户
选择要登录的帐户。
Unlicensed Product and activation errors in Office
Tip: In Windows 7, you can synchronize your computer clock with an Internet time server to keep the computer clock up to date.To do this, select the date or time in the bottom right-hand corner of your screen, and then select Change date and time settings.Select the Internet Time tab, select Change settings, select Synchronize with an Internet time server, and then select Update now.
适用于: Microsoft 365 专属 Excel, Microsoft 365 专属 Word, Microsoft 365 专属 Outlook, Microsoft 365 专属 PowerPoint, Microsoft 365 专属 Access, OneNote for Microsoft 365, Project Online 桌面客户端, Microsoft 365 专属 Publisher, Visio 计划 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project 专业版 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 Professional 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, Project 专业版 2016, Project Standard 2016, Publisher 2016, Visio 专业版 2016, Visio 标准版 2016, Office 2016, Microsoft 365 家庭版, Office 商业版, Office 365 小型企业版, Microsoft 365 管理员, InfoPath 2013
Get Windows updates as soon as they're available for your device
We're committed to delivering continuous innovation by releasing new features and enhancements into Windows 11 more frequently. Windows devices get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR). ...
Create a presentation in PowerPoint - Microsoft Support
Training: Watch and learn how to create a PowerPoint presentation, add/format text, and add pictures, shapes, and/or charts.
适用于: Microsoft 365 专属 PowerPoint, PowerPoint 2021, PowerPoint 2019, PowerPoint 2016
Insert a Table - support.office.com
由于此网站的设置,我们无法提供该页面的具体描述。
Sign in and start apps from the My Apps portal - Microsoft Support
Download and install the My Apps Secure Sign-in Extension. Download and install the My Apps Secure Sign-in Extension, if you're prompted. This extension helps you use your desktop browser to use single sign-on with your organization's cloud apps.
Trợ giúp về tài khoản
Trợ giúp và hỗ trợ về tài khoản Microsoft Nhận trợ giúp về việc đăng nhập, tài khoản bị khóa hoặc bị xâm phạm, tài khoản được liên kết, đóng, mở lại và cập nhật thông tin bảo mật và hồ sơ tài khoản của bạn.
Basic tasks in Excel - Microsoft Support
Get started with basic tasks in Excel such as opening a workbook, entering and formatting data, calculating data, and trying some quick analysis features..
适用于: Microsoft 365 专属 Excel, Excel 2021, Excel 2019, Excel 2016
Firewall & network protection in Windows Security - Microsoft Support
Advanced settings - This will open the classic Windows Defender Firewall tool which lets you create inbound or outbound rules, connection security rules, and see monitoring logs for the firewall. Most people won't want to dig into it that deeply; adding, changing, or deleting rules incorrectly can cause your system to be more vulnerable or can cause some apps not to work.
Cumulative Update 14 for Exchange Server 2019 (KB5035606)
Cumulative Update 14 for Microsoft Exchange Server 2019 was released on February 13, 2024. It includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These fixes will also be included in later cumulative updates for Exchange Server 2019. This update also includes:
Hinzufügen eines Druckers oder Scanners in Windows
Wenn Ihr Drucker über ein Kabel verbunden wird, schließen Sie ihn an Ihr Gerät an. Es wird automatisch eine Verbindung hergestellt, Ihr PC lädt die richtigen Treiber herunter, und Sie können ihn sofort verwenden.