Microsoft BitLocker Drive Encryption technology uses the strongest publicly available encryption to protect your computer’s data, and prevents others from accessing your disk drives without authorization. BitLocker To Go prevents unauthorized access to your portable storage drives, including Universal Serial Bus (USB) flash drives, also known as “thumb drives.” When you install Windows 8, you can use the Setup program to enable BitLocker. If you didn’t enable BitLocker when you installed Windows 8, you can use this guide to walk you through the process. You can also use this guide to learn how to suspend BitLocker or encrypt portable drives.