Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.

改进 此更新包括属于以下更新的新功能和质量改进： 2026 年 4 月 14 日 - KB5083769（OS 内部版本 26200.8246 和 26100.8246） 2026 年 4 月 30 日 - KB5083631（OS 内部版本 26200.8328 和 26100.8328）预览版 此更新解决了以下指南中所述的安全漏洞： 2026 年 5 月安全汇报 以下摘要概述了此更新解决的关键质量改进。 括号 ...

Hey Xbox Insiders! The latest release notes for Xbox Insiders enrolled in the Alpha Skip-Ahead ring are below!

Xbox has partnered with NVIDIA GeForce NOW and Boosteroid to bring first-party titles to more players. If you own any of the supported Xbox games on Steam and have an account to either streaming service, you can play your game in the cloud from anywhere. Just make sure that you link your Steam account to either NVIDIA GeForce NOW or Boosteroid.

Learn how to add all your different accounts to the Microsoft Authenticator app.

iOS Android To install Authenticator on your iOS device Scan the QR code or download and install Authenticator from the Apple app store.

Release notes Current Channel Monthly Enterprise Channel Semi-Annual Enterprise Channel Semi-Annual Enterprise Channel (Preview) Office for Mac Returns text that occurs after given character or string. It is the opposite of the TEXTBEFORE function. Syntax =TEXTAFTER (text,delimiter, [instance_num], [match_mode], [match_end], [if_not_found]) The TEXTAFTER function syntax has the following ...

获取 Microsoft 365 的支持、帮助和学习资源。 使用 Microsoft 365 让你的生活井然有序、扩展你的创造力并保护重要信息。

Windows 11 Windows 10 摘要 在 Windows 中重置电脑是一项强大的功能，可让你将设备还原到其原始状态，无论遇到性能问题、软件问题还是只是想要重新开始，这都很有用。 此功能设计为用户友好，并提供多个选项来满足不同的需求。 重置电脑之前 重置电脑会重新安装 Windows。 根据所选选项，可能会删除 ...

Use the AND function, one of the logical functions, to determine if all conditions in a test are TRUE. Example Technical Details The AND function returns TRUE if all its arguments evaluate to TRUE, and returns FALSE if one or more arguments evaluate to FALSE. One common use for the AND function is to expand the usefulness of other functions that perform logical tests. For example, the IF ...