Microsoft Chief Financial Officer Peter Klein reports that Windows 7 has sold 90 million copies since its release in October 2009 and Microsoft predicts the beginning of an enterprise tech refresh in either 2010 or 2011. Although Microsoft has seen strong consumer spending on Windows 7, tight IT budgets in the wake of a global recession have limited business tech spending. Windows 7 adoption is growing in the United States, climbing to 7.57 percent in January.
– The Windows 7 operating system continues to sell strongly five months after
its release, but a tech refresh among businesses may take additional time to develop,
according to Microsoft Chief Financial Officer Peter Klein.

Klein told those gathered for a Morgan Stanley investor conference Ma…