Learn more about update KB4534310, including improvements and fixes, any known issues, and how to get the update.

Microsoft made a commitment to provide 10 years of product support for Windows 7 when it was released on October 22, 2009. This 10-year period has now ended, and Microsoft has discontinued Windows 7 support so that we can focus our investment on supporting newer technologies and great new experiences.

Automatically repair Windows Firewall problems, such as Windows fails to start Windows Firewall service (0x5) or Windows remote assistance is not working.

If your Xbox One or Xbox Series X|S console is having network connection issues of any kind, we’ll point you to the best solution for the specific type of connection issue you’re experiencing.

Find out how to turn on Game Mode while playing a game on your Windows 10/11 device.

Get help and learn how to use Skype with Microsoft's official support page.

查找 Microsoft Excel 帮助和学习资源。 了解如何有效使用 Excel 的指导文章、指南、培训视频和提示。

Microsoft is retiring the Windows legacy inbox Troubleshooters, such as Keyboard troubleshooter and Speech troubleshooter, and the Microsoft Support Diagnostic Tool (MSDT) that runs them.

Learn which languages are supported in Narrator in Windows and how to adjust your Narrator Settings.

Инструкции по включению и отключению брандмауэра Microsoft Defender. Для выключения переключите этот параметр в положение Выкл.. Отключение брандмауэра Microsoft Defender может сделать ваше устройство (и сеть, если таковая имеется ...