Secure USB Drives with BitLocker Windows 7

Secure your USB flash drives using BitLocker encryption.

Right-click on your USB drive in My Computer, select Turn on BitLocker and follow the instructions to protect sensitive data on your thumb drives.The next time you use your USB drive on another computer, it will prompt you for the password before allowing you read-only access to your flash drive. You can even use the drive on older computers running Windows XP/Vista.

via 12 More Windows 7 Tips & Hacks.