Troubleshoots and fixes common issues with security and malware prevention in Windows.

Get help with using mail, calendar, and contacts on Outlook.com.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Starting your Surface from a USB drive can be useful if you want to change firmware settings or Windows startup settings. Booting from a USB device doesn’t refresh or reset your Surface.

32-bit Arm apps available from the Store in Windows are not supported by Mac computers with M1, M2, and M3 chips. 32-bit Arm apps are in the process of being deprecated for all Arm versions of Windows.

This article describes a problem with CD or DVD drives not work, or is missing, or not recognized after installing or uninstalling programs.

Learn how to set up Microsoft Family Safety to manage screen time, filter content, and share location with your family members.

Learn how to open a shared mailbox in the Outlook Web App. Shared mailboxes let a group of users view and send email, and share a calendar, from a common mailbox.

Find out how Microsoft uses activity history data to provide personalized cross-device experiences and to help improve its products and services.

了解如何创建用于安装或重新安装 Windows 7、Windows 8.1 或 Windows 10 的安装介质。