Digital signatures and certificates - Microsoft Support
Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, Excel 2024, PowerPoint 2024, Access 2024, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016
Xbox Support
Xbox Support ... Xbox Support
跟踪游戏中的 Xbox 成就 | Xbox Support
Learn how to track achievements in your Xbox games and enhance your gaming experience with this comprehensive guide.
November 11, 2025—KB5068787 (OS Build 20348.4405)
This cumulative update for Windows Server 2022 (KB5068787), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information ...
November 11, 2025—KB5068791 (OS Build 17763.8027)
Applies to: Windows 10 Enterprise LTSC 2021 This security update includes fixes and quality improvements that are part of the following update: October 14, 2025—KB5066586 (OS Build 17763.7919) The following is a summary of the issues that this update addresses when you install this update. The bold text within the brackets indicates the item or area of the change we are documenting. [App ...
Object moved - support.skype.com
Object moved Object moved to here.
Xbox Status | Xbox Support
Check the Xbox services, games, and apps for any service outages.
Add or remove a digital signature for Microsoft 365 files
To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Signature Line in the Text group. In the Signature Setup dialog ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2024, PowerPoint 2024, Excel 2021, Word 2021, PowerPoint 2021, Excel 2019, Word 2019, PowerPoint 2019, Excel 2016, Word 2016, PowerPoint 2016
将敏感度标签应用于文件 - Microsoft 支持
注意: 此功能需要 Microsoft 365 订阅。 有关详细信息，请参阅 我的 Office 版本是否支持敏感度标签？. 如果你是希望开始使用敏感度标签的管理员，请参阅 敏感度标签入门。 若要查看功能和版本可用性的完整列表，请参阅 Word、Excel 和 PowerPoint 中的敏感度标签功能。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Word for the web, PowerPoint for the web, Excel 2024, Outlook 2024, PowerPoint 2024, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Microsoft365.com, Outlook on the web, Excel for iPad, Word for iPad, PowerPoint for iPad, Excel for iPhone, Word for iPhone, PowerPoint for iPhone, Word for Android tablets, Excel for Android tablets, PowerPoint for Android tablets, Excel for Android phones, My Office for iPhone, New Outlook for Windows, Outlook for Android, Outlook for iOS, PowerPoint for Android phones, Word for Android phones
將社交網路帳戶連結至 Xbox | Xbox Support
除了少數例外情況，您只需要連結帳戶一次。 例如，如果您從 Game Bar 連結帳戶，該帳戶將會連結至 Windows 版 Xbox 應用程式以及您的主機上。 全部展開