Use Find my device to locate and lock your lost or stolen Windows devices.

How to use the SUMIF function in Excel to add the values in a range that meet criteria that you specify.

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.

Get started with news and interests, choose how weather looks on your taskbar, turn it on and off, personalize your feed and choose interests and followed publishers.

If you change your country or region for Microsoft Store, stuff you got in one region might not work in another.

See how to find things you've downloaded on your PC.

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

Notes about this update. When this update is installed, Windows may attempt to download and install feature updates to your device if it is approaching or has reached the end of support for your currently installed Windows version.

Master the art of Excel formulas with our comprehensive guide. Learn how to perform calculations, manipulate cell contents, and test conditions with ease.

Learn how to design professional-looking presentations with Microsoft 365. Create high quality, customized slides in a few clicks with PowerPoint Designer.