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Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

Discover how to earn Microsoft Rewards points through various activities and redeem them for exciting rewards.

Learn how to contact Microsoft Store support to get help for your payment and billing issue.

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

There are several ways to calculate the difference between two times.

Sometimes add-ins can conflict with Outlook. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the source of the problem.

Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

Learn how to locate, install, and share files with custom fonts compatible with Microsoft Office applications.

How to use the LOOKUP function in Excel to search in a single row or column and find a value from the same position in a second row or column.