Dell Insprion laptop drivers15R

Hello, hi this is harish i buy a new inspiron 15R but thay not give drivers so i will search in internet but that drivers r not supported for this ,and some drivers r suported so plz send me drivers link to my gmail adress my adress is harishh432@gmail.com plz send me wifi drivers for windows xp and windows vista and 7 so plz send me i have more problem with this so plz send me plz..............