Support for Office 2021 will end on October 13, 2026. Learn more about your options for Office.

此安全更新包括修补程序和质量改进，属于以下更新的一部分： 2026 年 6 月 9 日 - KB5094127 (OS 内部版本 19045.7411 和 19044.7411) 以下是安装此更新时此更新解决的问题的摘要。 如果有新功能，它还会列出它们。 括号内的粗体文本表示我们正在记录的更改的项或区域。 [OLE 自动化 (已知问题) ] 已修复 ...

Learn how to secure and manage your Xbox family group's online safety and privacy settings effectively.

Check the XBOX services, games, and apps for any service outages.

联系 Microsoft 支持人员。查找常见问题的解决方案，或从支持专员那里获取帮助。

Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your "issue" fixed, it's better to be safe and not click any links or provide any personal information.

This security update includes fixes and quality improvements that are part of the following updates: August 11, 2026—KB5120249 (OS Builds 19045.7663 and 19044.7663) The following is a summary of the issues that this update addresses when you install this update. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are ...

Learn how to protect your PC, identity, and data from tech support scams.

Microsoft 支持可帮助你处理 Microsoft 产品的问题。 查找有关 Microsoft Copilot、Microsoft 365、Windows 11、Surface 等的操作方法文章、视频和培训。

連絡 Microsoft 支援服務。尋找常見問題的解決方案，或向支援專員尋求協助。