Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

Compare Microsoft Copilot options to find the best AI-powered tools for your productivity and collaboration needs.

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.

Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

Audio issues on your PC can be incredibly frustrating, especially when you're trying to watch a video, attend a meeting, or listen to music. Fortunately, most sound problems can be fixed by following a series of troubleshooting steps. This article provides a comprehensive guide to resolving audio issues in Windows. The tips are listed in order, so start with the first one, see if that helps ...

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders. Combine several files into a single zipped folder to more easily share a group of files. To zip (compress) Locate the file or folder that you ...

Learn how to view or edit passwords saved in Microsoft Edge using the Microsoft password manager.

Search for help on the taskbar, use the Tips app, select the Get help link in the Settings app, or go to support.microsoft.com/windows.