Note: Before you start make sure your media of choice will be large enough for the .iso file you have downloaded. CDs usually hold 700MB and DVDs normally have a capacity of 4.7GB.
1) Insert your blank CD or DVD into the DVD drive
2) Right-click on the .iso file you downloaded
3) Select "Open with"
4) Select "Windows Disc Image Burner"
5) Click the button labeled "Burn"
6) Click the "Close" button
7) Remove your media from the DVD drive.