OK, the only way you can use your friends disk and install key is IF he has uninstalled it from his machine AND it is a retail [not oem] version of windows.
You can install win7 from a usb however I believe you must make the bootable usb from an iso file. If you just copied the dvd to the usb, it is not going to work.
Before going any further, do you have a legal MS install disk with a key code [that is NOT installed on another system]
You can install win7 from a usb however I believe you must make the bootable usb from an iso file. If you just copied the dvd to the usb, it is not going to work.
Before going any further, do you have a legal MS install disk with a key code [that is NOT installed on another system]