Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.

Regional format settings in Excel affect dates, currency, formula delimiters, and more. If you are using your organization account, the default regional format settings in Excel for the web are the site regional settings of the SharePoint site where the Excel workbook is hosted. This article provides steps to change just your own regional format settings in Excel for the web. During your Excel ...

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows.

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Disk Management in Windows helps you perform advanced storage tasks like initializing a new drive and extending or shrinking volumes.

Error 80048821 prevents you from connecting to Xbox Live. Find out why you get the error and learn about solutions.

Discover how to open the touch keyboard and learn about the different layouts.

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

More help If you're using a work or school account and couldn't install classic Outlook following the steps above, contact the IT admin in your organization for assistance.