Learn how to use a USB flash drive or DVD to install, reinstall, or perform a clean installation of Windows 10, 8.1, 7, or 11. Find the software download website, product key, and recovery options.

Learn how to mirror or project another device's screen to your Windows PC using Miracast. Follow the steps for Windows 11 or Windows 10 to install the Wireless Display app and connect to a wireless display.

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 and get help from the Outlook.com community.

Learn how to download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. Find out the system requirements, product keys, activation steps, and troubleshooting tips.

Learn how to upgrade to Windows 11 from Windows 10 using Windows Update, Installation Assistant, or installation media. Note that some features and apps require higher system requirements than the minimum.

Learn how to activate Windows 11 using a digital license or a 25-character product key. Find out how to check your activation status, link your Microsoft account, and troubleshoot activation issues.

Learn how to use the PC Health Check app or manual steps to see if your device meets the system requirements for Windows 11 after changing your hardware. Find out how the upgrade offer is based on various factors and how to refresh the assessment.

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

Learn how to download and install Microsoft 365 or Office 2019, 2016, or 2013 on your PC or Mac. Find out how to activate Office, troubleshoot issues, and switch languages or bit versions.

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.