He also encouraged partners to get behind the company's hardware devices, such as Surface tablets and Nokia smartphones, as well as Windows-powered tablets, laptops and PCs from hardware partners.
He said OEMs this year-end holiday season will release Windows devices in the sub-US$200 and sub-$100 price range, including an HP Stream laptop that will cost $199.
"We'll participate in the low-end" part of the computing device market, and challenge Google's Chromebooks, he said.
Microsoft, the king of the PC OS with a 90 percent share, is very much a challenger in the total OS market for computing devices, including smartphones and tablets, with a 14 percent slice of the pie.
"We need to have a challenger mindset," he said.
Turner also urged partners to pitch the value of SharePoint and Yammer for enterprise collaboration to their customers, while also citing Skype, OneDrive, Outlook.com and the Xbox. He also highlighted security and IT management tools, like the Enterprise Mobility Suite.
Turner's impassioned speech closed a string of keynotes that started at 9 a.m. and finished at noon, all designed to get partners enthused about Microsoft cloud products, so that the number of partners reselling those services rises significantly in the coming year.
Microsoft also announced a series of incentives and changes for its partner programs.
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