Learn how to switch between HTML, Rich Text Format, or plain text for your email messages in Outlook. Find out how to change the format of a reply, a forward, or a new message, and how to set the default format for all messages.

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 protect yourself from the data breach of National Public Data, an online background check and fraud prevention service. Find out what data was exposed, the risks involved, and the actions to take with Microsoft Defender for Individuals.

Learn how to mirror or project another device's screen to your Windows PC using Miracast. Follow the steps to install the Wireless Display app, connect to a wireless display, and add Cast to your quick settings.

Learn how to use the PC Health Check app or the Microsoft Compatibility Appraiser task to see if your device meets the system requirements for Windows 11 after changing your hardware. Find out how to refresh the eligibility assessment and what factors affect the upgrade offer.

Learn how to troubleshoot common sound or audio issues in Windows 11 and Windows 10. Follow the steps to check your speaker output, run the audio troubleshooter, update or uninstall your audio driver, and more.

Learn how to use 25-character codes to make Xbox purchases and extend your Xbox subscriptions. Follow the instructions for different devices and platforms, such as Xbox Series X|S, Xbox One, PC, mobile web browser, and Microsoft Store.

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.

Find out how to download and install Microsoft 365 or Office 2019, 2016, or 2013 on your PC or Mac. Follow the steps to sign in, choose your language and bit version, and activate your product.

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.