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“While our research reveals that personal computer demand has been uniformly weak in the two to three quarters preceding a Windows release, historical Windows releases have not been identified as significant drivers of improved (retailer) performance once the launch has taken place,” he wrote in a note last week.

Best Buy sounded more positive. The retailer started taking advance orders for Windows 8 devices and demonstrating the product in all stores on Sunday, and so far the response has been positive, Bonfig said.

“We’ve been very happy with interest and traffic in stores,” he said.