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学习如何在 Windows 中解决 USB-C 问题，修复 USB 设备、端口和适配器无法正常工作。

Aprende a usar la aplicación Comprobación de estado del PC para ayudarte a mejorar el rendimiento del dispositivo.

Training: Watch and learn how to use PowerPoint in Windows. Explore PowerPoint training guides, articles, and how-to videos.

Applies To: PowerPoint for Microsoft 365, PowerPoint 2021, PowerPoint 2019, PowerPoint 2016, Office for business

Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

Informazioni su come installare, reinstallare o attivare Microsoft 365 o Office 2019 in un PC o un Mac.

Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com

Learn how reserved storage works in Windows to conserve disk space for temporary files, caches, and other files.

Discover the latest updates for Windows 10, including improvements and fixes, known issues, and guidance on how to get the update.

Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.

Applies To: Calendar for Windows 10, Mail for Windows 10

Learn how to use Narrator, a screen-reading app built into Windows, with this complete guide and how-to articles.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.