Learn how to download and use the Office offline installer to install Microsoft 365, Office 2021, Office 2019, or Office 2016 on your PC. Follow the steps for your plan and activate Office after installation.

Learn how to add your accounts to Microsoft Authenticator for verification, two-step verification, or passwordless sign-in. Follow the steps for personal, work, school, or non-Microsoft accounts and scan QR codes or enter codes manually.

Learn how to access your Outlook.com, Hotmail, Live, or MSN email account with your Microsoft Account username and password. Find solutions for common sign-in problems, troubleshooters, and help options.

Learn how to create a USB flash drive or DVD to install or reinstall Windows 11, 10, 8.1, or 7. You'll need a reliable internet connection, a blank storage device, and a product key (if applicable).

Learn how to locate your BitLocker recovery key, a 48-digit number needed to unlock an encrypted drive in Windows. See where to find it attached to your Microsoft account, work or school account, printout, or USB flash drive.

Learn how to use Microsoft Authenticator to sign in to your accounts if you've forgotten your password, use two-step verification or multi-factor authentication, or have gone passwordless. You can also sign in to a work or school account using a remote computer with a code from Authenticator.

Learn how to add, remove, connect, disconnect, and configure user accounts in Windows 10 and Windows 11. User accounts let each person have their own settings, documents, and applications on the same device.

Learn where to enter your product key for different versions of Office or Microsoft 365, and how to install or reinstall Office after redemption. Find tips for troubleshooting product key issues and contacting support.

Learn how to share files, folders, or lists with people outside your organization using Microsoft 365. Find out how to create secure links, manage access, and stop sharing when you're done.

Learn how to find and use the POP, IMAP, and SMTP settings for your Outlook.com account. You can also enable POP or IMAP access, troubleshoot connection errors, and get help from the Outlook.com community.