Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

Erfahren Sie, wie Sie die App „PC-Integritätsprüfung“ verwenden, um die Leistung Ihres Geräts zu verbessern.

请执行以下任一操作： 在 “翻译为 ”下拉列表中，选择要将页面翻译成的语言。 默认值是为Microsoft Edge设置的语言。

Descubre cómo enviar una solicitud para obtener el reembolso de una compra de contenido digital de Xbox.