Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

Explore your options and settings when you install add-ins.

Learn about modems and Internet connections, security, sharing files and printers, and how to set up a wireless network in your home.

Contact groups, or distribution lists, are a fast way to send a message to multiple email recipients, especially groups you repeatedly contact.

How to use the COUNTIF function in Excel to count the number of cells that meet values you set.

Get info on how to find your IP address in Windows. Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Use the XLOOKUP function when you need to find things in a table or a range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term, and return a result from the same row in another column, regardless of which side the return column is on.

Learn how to restore files that have been permanently deleted and are no longer in the recycle bin on Windows 10.

Erfahren Sie, wie Sie Ihr Windows-Kennwort ändern oder zurücksetzen, wenn Sie es vergessen oder verloren haben.

Get a brief explanation about logging on as an administrator and making changes to other user accounts on your computer.