July 14, 2026-KB5101001 Cumulative Update for .NET Framework 3.5 and 4. ...
The July 14, 2026 update for Windows 11, version 24H2 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-2026-47302 - .NET Framework Denial of ...
Fix sound or audio problems in Windows | Microsoft Support
Run the Windows audio troubleshooter If you are using a Windows 11 device, start by running the automated audio troubleshooter in the Get Help app. It will automatically run diagnostics and attempt to fix most audio problems. If you are using an older version of Windows or a mobile device, please skip to General troubleshooting steps.
Secure your account if you think you’ve been hacked
If you think your Microsoft account has been hacked, find out how to secure your account and check for unauthorized activity.
Perform an offline system update | XBOX Support
The XBOX Offline System Update (OSU) process allows you to update your console by downloading a file to a USB flash drive and then installing that file directly onto your XBOX Series X|S or XBOX One console.
在 Microsoft Edge 中安全瀏覽網頁 | Microsoft Support
在 Microsoft Edge 中安全瀏覽網頁 隨著線上威脅日益嚴重，優先考慮網頁瀏覽的安全非常重要。 Microsoft Edge 提供數種功能和做法，可增強您的線上安全性並保護您的個人資訊。 請遵循這些指導方針，在 Microsoft Edge 中安全地瀏覽網頁。 確認網址列中的連線圖示 當您瀏覽網頁時，您會在網址列中看到 ...
2026 年 8 月 27 日 - KB5120998 (OS 内部版本 26200.9278 和 26100.9278) 预览版
此适用于 Windows 11 版本 25H2 和 24H2 (KB5120998) 的累积更新包括生产质量改进。 公告和消息 本部分提供与此版本相关的重要通知，包括公告、更改日志和终止支持通知。 Windows 安全启动证书过期 重要提示： 大多数 Windows 设备使用的安全启动证书从 2026 年 6 月开始过期。 在过去的几个月里，Microsoft 一直 ...
Activate Office for Windows | Microsoft Support
Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Excel 2024, Word 2024, Outlook 2024, PowerPoint 2024, Access 2024, OneNote 2024, Project Standard 2024, Visio Professional 2024, Visio Standard 2024, Office 2024, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home
Set up and troubleshoot your XBOX Stereo Headset
Learn how to use your XBOX Stereo Headset and troubleshoot any audio issues.
Повторна активація Windows після зміни обладнання
Дізнайтеся, як підготувати пристрій Windows до зміни обладнання та знайти довідку з повторної активації Windows після завершення зміни обладнання.
Update drivers through Device Manager in Windows - Microsoft Support
Driver updates for most hardware devices in Windows are automatically downloaded and installed through Windows Update. Windows Update updates drivers for various hardware including network adapters, printers, scanners, and video cards. Drivers updated through Windows Update are normally recent and up to date. However, drivers can also be updated through Device Manager. Drivers updated through ...