I had this problem recently na walay CD-ROM and I tried putting Windows XP sa USB using the software you guys mentioned pud. Pero ang problem kay mu error inig install, usually missing files. Nya the CD I used na Windows is original. Eventually, I gave up and ended up borrowing someone's external DVD ROM na USB.
Sa uban, makabuhat siguro sila mu install from USB ug WinXP or even Win7 pero in my experience (and pawala labad ulo), nihuwam lang gyud ug CD/DVD-ROM.