The Windows 7 USB/DVD Download tool allows you to create a copy of your Windows 7 ISO file on a USB flash drive.
What you need is:
- Windows 7 USB DVD Download Tool - it's free
- Windows 7 Iso file - image of your original DVD installer.
To create a bootable DVD or USB flash drive, download the ISO file and then run the Windows 7 USB/DVD Download tool. The instructions are simple and very straight forward. Once this is done, you can install Windows 7 directly from the USB flash drive or DVD.