The video also tells how to format narrated computer
Windows 7 Setup Steps
First of all, you need to bring the cd drive in the first place from the boot settings in your BIOS settings. To do this, enter Bios with the Delete, F2, F12 keys (whichever your motherboard enters with bios) to enter the BIOS setup. Here you will usually see the Boot tab or you can see it in Advanced. We bring our CD / DVD drive to the 1st place.
BIOS screen may be different on each computer. This image is a picture
You need to find the boot section and then make your CD ROM drive the first boot.
You can start your CD and Windows 7 installation by restarting your computer by setting your CD Rom as 1st boot and pressing F10 to save your settings.