Windows 11 Windows 10. If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key. Where can I find my BitLocker recovery key?

Learn how to update your security processor or TPM firmware to protect Windows 10 and your device from attacks by malicious software.

Microsoft Defender Antivirus is a powerful tool that finds and removes malware from your PC. Here's how to use it in Windows 10 or 11 to scan your PC. Important: Before you use Microsoft Defender Offline, make sure to save any open files and close apps and programs. Open your Windows Security settings.

Refunds for digital games include Microsoft Store digital game offers, Xbox apps (excluding movies and TV apps), digital gaming bundle offers, digital game durable content, and some digital game consumable content, whether made available through the Xbox console, on your PC, or on your mobile device.

Redeem Code. Tip: If you bought the wrong code, please contact the retailer. How to redeem an Office product key. Sign in to Office.com/setup with your Microsoft account. Enter the 25-character code, and then select Next . Sign in. How to redeem a Windows activation code.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Ways to install Windows 11. Managing Windows 11 “System requirements not met” message in your organization. Learn what to do when you see a warning message that your device does not meet Windows 11 minimum system requirements to upgrade.

Option 1: Use the Windows Security app. Run Settings > Update & Security > Windows Security > Device Security. If you do not see a Security processor section on this screen your PC may have a TPM that is disabled. see How to enable TPM for more information or check your PC manufacturer’s support information for instructions. to enable the TPM.

Windows 7. Windows 8.1. Windows 10 (Then select Download now.) Windows 11 (Then select Download now .) Important: Back up your files before you install or reinstall Windows on your PC. Learn how. To create the installation media, here's what you'll need: A PC with a reliable internet connection.

Select one of the recovery options below and follow the steps to try to get things working again. Remove an installed Windows update. Reset your PC. Use the Startup Repair function. Use installation media to reinstall Windows 11. Use installation media to restore your PC. Use a recovery drive to restore or recover your PC.