Digital signatures and certificates - Microsoft Support
Digital signatures provide assurances about the validity and authenticity of digital documents.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, 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 Cloud Gaming in Microsoft Edge with Steam Deck
How to set up Xbox Cloud Gaming on a Steam Deck device using the Microsoft Edge browser.
Applies To:
Microsoft Edge
Fix graphics device problems with error code 43 - Microsoft Support
Learn how to fix graphics device driver error code 43 in Windows 10.
Subscriptions & billing | Xbox Support
Get more information about managing your Xbox subscriptions, issues with billing, and more.
Windows Media Player - Microsoft Support
Learn how to download, customize, and troubleshoot Windows Media Player 12 with helpful guides and tips.
安装 Windows 7 Service Pack 1 (SP1) - Microsoft 支持
了解如何安装 Windows 7 Service Pack 1 (SP1)。 包含有关如何获取下载、要求和其他内容的信息。
Change or reset Internet Explorer settings - Microsoft Support
Learn how to change Internet Explorer settings, or reset browser settings when there's a problem.
Join a Teams meeting - Microsoft Support
Join Teams meeting with ease using our step-by-step guide. Learn how to join a Teams meeting via your calendar, a dial-in number, or on the web.
Applies To:
Microsoft Teams
Use Microsoft Authenticator with Microsoft 365
Learn how to use Azure Authenticator with Microsoft 365. It makes 2-step verification really easy!
Applies To:
Office for business, Microsoft 365 admin
Add people to your family group - Microsoft Support
Learn how to add members to your family group including child and adult accounts.
Applies To:
Microsoft Family Safety