http://www.thevarguy.com – As Windows 8 buzz grows louder, Microsoft is working overtime to ensure OEMs (original equipment manufacturers) and partners continue to focus on Windows 7 sales. Indeed, Peter Han (pictured), GM of Microsoft’s U.S. OEM group, spent an hour with The VAR Guy in Manhattan this week. The discussion focused around the ongoing Windows 7 upgrade opportunity, and first-time server opportunities. Han is a nine-year Microsoft veteran who previously focused on server licensing strategies; PC industry forecasting; and various partner-centric roles. His current role blankets 14 multinational partner (IT news)