Thanks for replying in minutes. Yes i do have the product key and in fact i previosly used windows 7. I have the iso file stored in my hard disk and i very well know how to make a bootable usb. I would like to install it in the same hard disk. And by the way i forgot to mention that both windows...
I am currently running windows 8 64bit OS. I have a windows 7 32bit .iso file. I want to install the windows 7 32 bit while keeping the windows 8 64bit too. Please help and suggestions of any kind are welcome.