How to burn an ISO image in Windows 7
To burn an ISO image in Windows 7, all someone needs to do is simply right-click on an ISO image and choose “Burn disc image”.
This launches Windows Disc Image Burner, giving you the option to burn the ISO image to either a CD or DVD.
If you check “Verify disc after burning”, it will verify the ISO image burned correctly. Choosing to verify a disc you burned will require additional time so if you’re in a hurry, you will probably want to ensure this option is unchecked.
I often burn ISO images to a DVD-RW so I can re-use the media. What’s great about Windows Disc Image Burner is that it will detect that a DVD-RW has content on it already and prompt you asking if you would like to erase the disc and burn new content to it. This ensures you don’t accidently erase and burn over something important that may be on that DVD-RW disc. This is awesome because it lets me re-use DVD-RW media.
Here's a video from CNET that has a tutorial on burning iso images in Windows 7