This site will help you accomplish the following:
- Create a Windows 7 DVD for installation on a new hard drive
- Create a backup Windows 7 DVD
- Create a bootable USB drive with a copy of Windows 7
Make sure you have a reliable internet connection and sufficient data storage available. You also need a valid Windows 7 product key to start the process.
Head on over to Microsoft Software Recovery if you need to recover your Windows 7 product or create a backup for later.