Regional format settings in Excel affect dates, currency, formula delimiters, and more. If you are using your organization account, the default regional format settings in Excel for the web are the site regional settings of the SharePoint site where the Excel workbook is hosted. This article provides steps to change just your own regional format settings in Excel for the web. During your Excel ...

The October 14, 2025 update for Windows 11, version 25H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections. Summary Security Improvements CVE-2025-55248 - .NET Framework Information ...

Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and ...

Before starting, make sure that the Windows 11 device supports Bluetooth. For more info on how to check, see Fix Bluetooth problems in Windows. For help with adding non-Bluetooth devices, see Add a hardware device to a Windows device.

文件信息 有关此更新中提供的文件列表，请下载 累积更新的文件信息。 先决条件 要应用此更新，必须安装 .NET Framework 3.5 或 4.8.1。 重启要求 如果未使用受影响的文件，则应用此更新之后无需重新启动计算机。 我们建议你退出所有基于 .NET Framework 的应用程序，然后再应用此更新。 如何获取此更新 ...

Improve security, evaluate and mitigate the risks of running macros, and see how to enable or disable macros for Microsoft 365.

Need help setting up an Xbox profile or signing in to Xbox on your console, PC, or mobile device? This solution will help you sign in or create a new account.

On your computer, download the update file: Xbox 360 system update file Click Save to save the console update .zip file on your computer. Unzip the file. Insert a blank, writeable CD or DVD into your computer. Copy the contents of the .zip file to the root directory on your CD or DVD, and then choose to write (burn) the files to the disc. Once you burn the files to disc, remove that disc from ...

Some Microsoft 365 features are backed by cloud-based services. Learn about connected experiences that analyze your content and download online content.

If you want to turn off Copilot in a Microsoft 365 app (for example, Word, PowerPoint, and Excel), you can clear the Enable Copilot checkbox in the app on your Windows or Mac device. When you turn off Copilot in an app, the Copilot icon on the ribbon is disabled and you won't be able to use any Copilot capabilities in that app. As an alternative to turning off Copilot, you can remove the ...