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To help you keep your device secure, Windows Security monitors your device for security issues and provides a health report, which appears on the Device performance & health page. The Health report alerts you to common issues in four key areas and offers recommendations to remedy them.

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You can add columns, rows, or cells to an Excel worksheet or delete them. Columns insert to the left, rows above, and cells above or to the left.

Learn how to upgrade Windows 10 Home to Windows 10 Pro to access more advanced security and networking features.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

To create a document, open Word, select a blank document or template, and start typing. Discover professionally designed templates for Microsoft Word.

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

An array formula (one that spans multiple cells) can do calculations on rows and columns of cells where you might otherwise need to use several formulas. For example, you can count the number of characters that are contained in a range of cells, sum only numbers that meet certain conditions (such as the lowest values in a range or numbers that fall between an upper and lower boundary), and sum ...

Learn how to share Microsoft 365 Family subscription benefits with up to five people. Manage invitations, devices, and people you've shared Office with.