i can,t boot my win7 cd in my laptop . i now i have win8 bt i want to setup win7 . plz tell me how could i do this ?



That in no way will install Windows 7 on a computer with Windows 8 on it.

Why can't you boot the disk? Error messages? Is it just not seeing the disk? Did you try the disk in another system to make sure the disk is good? You can try to make a USB setup from the disk using the MS tool http://www.microsoftstore.com/store/msusa/html/pbPage.Help_Win7_usbdvd_dwnTool