Learn how to download and install or reinstall Office 2019, Office 2016, or Office 2013 on your PC or Mac. Find out how to activate Microsoft 365, troubleshoot issues, and customize your installation options.

Learn how to encrypt email messages in Outlook for Windows using Microsoft 365 Message Encryption or S/MIME encryption. Encrypting a message protects the privacy of the message and requires a private key to decipher it.

Learn how to access your Hotmail or Outlook.com email account with your Microsoft Account password. Find troubleshooting tips, service status, and contact information for Outlook.com help.

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 use 25-character codes to make Xbox purchases and extend your subscriptions on different devices and platforms. Follow the video instructions or the step-by-step guides for Xbox, PC, mobile web, and Microsoft Store.

Learn how to locate your 25-character product key or digital license for Windows 10 or Windows 11, depending on how you got your copy. See where to find your product key for Windows 7 or Windows 8.1, and how to tell if it's genuine.

Learn how to download and install Microsoft 365 or Office 2021 on your device, whether you have a Microsoft account, a work or school account, or a product key. Find out how to activate the apps, troubleshoot issues, and get support.

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 set your preferred home page in different browsers, including Microsoft Edge, Internet Explorer, Google Chrome, Firefox, and Safari. Follow the steps for each browser to customize your home page settings.

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, such as unusual activity, account troubleshooter, and automatic sign-in.