if u r a legit "student" with a accessible .edu domain email, you should be able to get a copy of win 7 with less than $30
and is of course, not FREE! ms "RAPE" u of for money, but this is already a very cheap option, considering some random softwares that rip u off for thousands doing some basic graphical functions. Of course, if u really do want to search for pirate copies, im sure there r a lot online, but with lots of risks too, it's a taboo in the forum to ask this. Please be aware.