Microsoft .NET Framework 4.8.1 is a highly compatible and in-place update to .NET Framework 4.8. It includes native support for the Arm64 architecture (Windows 11+), accessibility improvements as well as other improvements.

Get help with using mail, calendar, and contacts on Outlook.com.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

Learn how to use the privacy dashboard in your Microsoft account and manage your privacy settings for products you use.

Learn more about updates for Windows 10, version 2004, including improvement and fixes, any known issues, and how to get the update.

Learn how to design professional-looking presentations with Microsoft 365. Create high quality, customized slides in a few clicks with PowerPoint Designer.

Learn how to deal with phishing or spoofing scams or abusive messages in Outlook.com.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。

Find out what steps you can take if an incompatible driver in preventing you from turning on the Memory integrity setting in Windows Security.

The CONCAT function combines the text from multiple ranges and/or strings, but it doesn't provide delimiter or IgnoreEmpty arguments.