I cant donwload windows from a disk and it gets to the enter you details part and boots from other devise, i have set boot priority to disk. i have had windows 8 and had to remove it becuse i got a bad virus, i would not let my double click on anthing drag or trun off and could not run applications so i did factory reset and removed everything with an os called gparted made a new partion and could not instal windows.

Can you tell us more about your computer, please? Make and model, as well as any upgrades you have given it.