Learn how to use Microsoft Defender to check your device for viruses or malware on Windows, Android, or Mac. Find out the signs of infection, the types of scans, and how to run Microsoft Defender Offline for a deeper scan.

Learn about the data breach that exposed up to 2.9 billion records of personal data of up to 170M people in 2024. Find out the risks, recommended actions, and how to use Microsoft Defender for identity theft monitoring and protection.

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

Learn how to use a digital ID to secure your email messages by adding a digital signature that verifies your identity and prevents tampering. Follow the steps to sign a single message or all messages in Outlook.

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.

Find help with managing your Xbox subscriptions, such as Game Pass, EA Play, and Games with Gold. Learn how to update your payment options, request refunds, and troubleshoot billing issues.

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 cancel an Xbox subscription and check for refund eligibility in different countries and markets. Find out the terms and conditions, troubleshooting tips, and contact information for Xbox subscription issues.

Learn how to use Microsoft Defender Antivirus to scan and remove malware, viruses, or other threats from your PC. Follow the steps to run an offline scan and view the results in Windows 10 or 11.

Find out how to get help for your Microsoft 365 or Office product, depending on whether you have a subscription or a one-time purchase. Compare the support options for different versions, products, and services, and learn how to contact a technical support expert.