I study here <a href=" http://www.deathofvinyl.com/where-can-i-buy-betnovate-cream-uk.pdf ">buy betnovate rd cream online</a> Historically, Microsoft has generated the bulk of its Windows revenue from sales to OEMs, or "original equipment manufacturers," the computer makers like Lenovo, Hewlett-Packard, Dell and others that pre-load the OS onto new machines. Retail upgrades typically contribute only small amounts to the company's bottom line.