If I can just add a bit here, providing that both computers have a disk drive, rather than a USB drive it might work better if you burn the ISO to a disk, if Windows 7 it will be best on a Write only DVD disk. If problems with burning as a correct bootable ISO disk, you can download, install, and use ImgBurn from here :-
http://www.imgburn.c...hp?act=download
Possibly best and safest download is their own at 7 or MajorGeeks at 6.
During download and install keep an eye out for and remove ticks for unwanted tool bars or other softwares, if offered an advanced option, use it as it is there where you will find the unwanted junk to remove the ticks.
Once installed, use "Write Image File to Disk" option. Choose a low speed to be sure of a correct burn.
If no disk drive on the problem machine, ignore me.
Nev.