This page provides phone numbers of Microsoft customer service.

Describes the new and improved features of Microsoft Windows Installer 4.5. The article also discusses the issues that are addressed from earlier versions of Windows Installer.

Learn more about updates for Windows 10, version 21H2, including improvement and fixes, any known issues, and how to get the update.

Microsoft Authenticator backs up your account credentials and related app settings, such as the order of your accounts, to the cloud. You can then use the app to recover your information on a new device, potentially avoiding getting locked out or having to recreate accounts.

Se describe cómo utilizar la herramienta Comprobador de archivos de sistema para solucionar problemas relacionados con archivos de sistema que faltan o están dañados en Windows 8.1, Windows 8, Windows 7 o Windows Vista.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.

Get help with your questions about Microsoft Access with our how-to articles, training videos, and support content.

Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.

Choose from a variety of Surface devices and accessories to get help.