Hii friends ... I came across this page in the dell studio 15 configuration which says "Windows 7 Upgrade Eligible" in the operation system option. I couldn't understand what it means ... The link to this page is: http://configure.ap.dell.com/dellstore/config.aspx?c=in&cs=indhs1&kc=&l=en&oc=S540506IN8&s=dhs Somebody please take the pains to explain this ... Thanks in advance !!